Donald Trump has been criminally indicted four times, and will have a series of trials to attend in 2024 as he runs again for the White House.
Donald Trump is heading towards a likely election rematch with Joe Biden in November, but this time around he's juggling campaigning with some potentially explosive legal battles.
His candidacy now also faces a challenge from the Colorado Supreme Court, which has ruled Mr Trump cannot run for president because he engaged in an insurrection with his actions in the days leading to the US Capitol riot on 6 January 2021.
The 77-year-old, who is the first former president in US history to be criminally charged, now faces 91 charges across four separate cases.
Here's a guide to the five cases and what they could mean for the former president and current frontrunner for the Republican presidential nomination.
And his legal troubles don't end there, as Mr Trump is also facing several civil cases relating to, among other things, the business empire that made his name. There are crucial legal appeals that are yet to be settled too, including one on whether he is immune from prosecution.
What are the arguments?
It's a complicated legal picture.
The Colorado Supreme Court declared Mr Trump ineligible for the presidency under the US Constitution's insurrection clause - Section 3 of the 14th Amendment - which disqualifies anyone who engages in insurrection from holding office.
Here, we'll focus on the four criminal cases Mr Trump is facing and explain what they're about, what could happen next and, crucially, what's at stake as he seeks to return to the White House.
Voting 4-3, the state's top court found Mr Trump had incited an insurrection in his role in the 6 January 2021 storming of the Capitol by his supporters. Mr Trump has repeatedly denied responsibility for the riot.
What's it about?
The bombshell ruling directs the Colorado secretary of state to exclude Mr Trump from the state's Republican primary on 5 March, where registered party members vote on their preferred candidate for president. But it could also affect the general election in Colorado next November.
A payment made to the adult film actress Stormy Daniels shortly before the 2016 election.
It does not stop Mr Trump running in other states.
Ms Daniels says she was paid $130,000 (£103,000) to stay quiet after having sex with Mr Trump, who denies they ever had an affair.
Similar lawsuits to to remove the Republican from the ballot in Minnesota, New Hampshire and Michigan have failed.
It's worth noting, though, that providing so-called hush money is not actually illegal.
What will his defence be?
Instead, this case is more technical and centres on how Mr Trump's former lawyer, who paid Ms Daniels, had his reimbursement recorded in Mr Trump's accounts.
During a one-week trial in Colorado in November, the former president's lawyers argued Mr Trump should not be disqualified because he did not bear responsibility for the riot.
The former president is accused of falsifying his business records by saying the payment was for legal fees. He's facing 34 counts of fraud under campaign finance laws, and has pleaded not guilty to all of them.
Following the Colorado Supreme Court's decision Mr Trump's campaign said immediately it would appeal the decision to the US Supreme Court, where it's likely a similar argument would be made.
Mr Trump has said the case is politically motivated. "This is just a way of hurting me in the election," he told reporters. "This is not a crime."
Who is Trump's trial lawyer Alina Habba?
When's the trial?
His legal spokeswoman Alina Habba said the ruling "attacks the very heart of this nation's democracy."
It's scheduled for 25 March, when jury selection will get under way.
"It will not stand, and we trust that the Supreme Court will reverse this unconstitutional order," she said.
It will be the first criminal trial of a US president.
What happens next?
What could the punishment be?
The Colorado Supreme Court put its ruling on hold until at least 4 January. If Mr Trump appeals, that pause will continue until the country's top court weighs in.
Each of the charges carries a maximum of four years in prison, although a judge could sentence Mr Trump to probation if he is convicted.
If the Supreme Court does take up the case, which experts say is likely, it could be forced to decide Mr Trump's eligibility beyond Colorado to all 50 states.
Legal experts told the BBC they think it is unlikely Mr Trump will be jailed if convicted in this case and that a fine is the more likely outcome.
That court has a 6-3 conservative majority with three justices appointed by the former president himself.
A guide to the six-week trial in New York
What are the charges in Georgia 2020 election investigation?
What's it about?
This is the most recent indictment, the one that saw the first ever mugshot of a former US president after Donald Trump turned himself in at the Fulton County Jail on 24 August. The charges for Mr Trump - listed now as inmate no. P01135809 on Fulton County Jail records - were unsealed last month.
Whether Mr Trump illegally conspired to overturn his 2020 election defeat to Joe Biden.
Mr Trump and 18 others are named in a 41-count indictment for alleged attempts to overturn his 2020 election loss in the state.
Federal prosecutors allege he pressured officials to reverse the results, knowingly spread lies about election fraud and sought to exploit the Capitol riot on 6 January 2021 to delay the certification of Mr Biden's victory and stay in power.
The investigation was sparked in part by a leaked phone call in which the former president asked Georgia's top election official to "find 11,780 votes".
He's been charged with four criminal counts, including conspiracy to defraud the US and conspiracy against the rights of citizens.
Mr Trump was hit with 13 criminal counts including an alleged violation of Georgia's Racketeering Influenced and Corrupt Organizations Act (Rico).
Some had speculated he would be charged with insurrection, or aiding insurrection, but that is not one of the charges.
His other charges include solicitation of violation of oath by a public officer, conspiring to commit impersonating a public officer, conspiring to commit forgery, conspiring to commit false statements, and writing and conspiring to file false documents.
He has denied wrongdoing.
What are the potential penalties?
The racketeering charge, which is mostly used in organised crime cases, carries a maximum 20-year jail sentence.
Georgia prosecutor Fani Willis would need to prove that there was a pattern of corruption from Mr Trump and his allies aimed at overturning the election result in order to bring a conviction.
As for making false statements, that carries a penalty of between one to five years in prison or a fine.
And a person convicted of first-degree criminal solicitation to commit election fraud will face between one to three years in jail.
What will his defence be?
Mr Trump has repeatedly denied wrongdoing in the case and has entered a plea of not guilty.
He has defended the phone call in question as "perfect" and accused Ms Willis of launching a politically motivated inquiry.
There is no confirmed date for the trial yet.
What are the charges in 2020 election investigation?
Donald Trump has been criminally charged in a separate federal investigation into efforts to overturn the result of the 2020 presidential election.
The 45-page indictment contains four counts: conspiracy to defraud the United States, conspiracy to obstruct an official proceeding, obstruction of and attempt to obstruct an official proceeding, and conspiracy against rights.
They stem from the former president's actions in the wake of the 2020 election, including around the 6 January Capitol riot, which occurred while Congress was meeting to certify Joe Biden's victory.
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Watch the moment Trump supporters stormed the US Capitol building
Watch the moment Trump supporters stormed the US Capitol building
Watch the moment Trump supporters stormed the US Capitol building
Watch the moment Trump supporters stormed the US Capitol building
What are the potential penalties?
When's the trial?
Penalties for these charges include:
It has been postponed indefinitely while an appeal from Mr Trump plays out.
He has asked the Supreme Court to put on hold a lower court ruling that he can be prosecuted like any other citizen. The trial cannot begin until the top US court decides what to do.
If it rejects his request, the trial could go ahead before November's election.
But if it decides to hear his case, it could delay the trial by months - potentially until after the election. And if Mr Trump were to win the election, he could in theory pardon himself or order the charges to be dismissed.
What could the punishment be?
Penalties for the charges include:
Conspiracy to defraud the US is punishable by a fine or up to five years in prison
Conspiracy to defraud the US is punishable by a fine or up to five years in prison
Obstructing an official proceeding is punishable by a fine or up to 20 years in prison
Obstructing an official proceeding is punishable by a fine or up to 20 years in prison
Conspiracy against rights is punishable by a fine or not more than 10 years in prison, or both
Conspiracy against rights is punishable by a fine or not more than 10 years in prison, or both
But there are logistical, security and political questions around whether Mr Trump would serve time even if charged and convicted.
But there are logistical, security and political questions around whether Mr Trump would actually serve time in jail even if convicted.
What will his defence be?
A conviction at trial would take the US into uncharted territory.
Mr Trump was formally charged in court in Washington DC on 3 August. A tentative trial date is scheduled for 4 March 2024.
What's it about?
He argues that the charges are an attempt to prevent him from winning the 2024 presidential election. Before leaving Washington after his arraignment hearing, he told journalists the case "is a persecution of a political opponent".
Mr Trump and some 18 other defendants are accused of criminally conspiring to overturn his very narrow defeat in the state of Georgia in the 2020 election.
Mr Trump has repeatedly denied responsibility for the riot on 6 January 2021.
The huge racketeering investigation, led by Georgia prosecutor Fani Willis, was sparked in part by a leaked phone call in which the former president asked the state's top election official to "find 11,780 votes".
His legal team is also likely to argue that the former president is not directly responsible for the violence that unfolded that day because he told supporters to march "peacefully" on the Capitol and is protected by First Amendment free speech rights.
Mr Trump was hit with 13 criminal counts, including an alleged violation of Georgia's Racketeering Influenced and Corrupt Organizations Act (Rico).
What are the charges in classified documents case?
He has repeatedly denied wrongdoing in the case and has entered a plea of not guilty.
Mr Trump is facing 40 criminal charges over his alleged mishandling of classified material after he left the White House.
When's the trial?
Thousands of documents were seized in an FBI search at his Florida estate Mar-a-Lago last year, including about 100 that were marked as classified.
A date has not been set.
The charges are related to both his handling of the documents and his alleged efforts to obstruct the FBI's attempts to retrieve them.
The timeline has also been complicated by an effort to disqualify Ms Willis because of her romantic relationship with a man she hired to work on the case.
The majority of the counts, are for the wilful retention of national defence information, which falls under the Espionage Act.
Those proceedings could potentially delay a trial in the case.
There are then eight individual counts which include conspiracy to obstruct justice, withholding a document or record and making false statements.
What could the punishment be?
Will Donald Trump go to jail?
The racketeering charge carries a maximum 20-year jail sentence.
These charges could - in theory - lead to substantial prison time if Mr Trump is convicted.
Georgia prosecutors would need to prove that there was a pattern of corruption from Mr Trump and his co-defendants aimed at overturning the election result in order to bring a conviction.
But the logistics, security and politics of jailing a former president mean a conventional prison sentence is seen as unlikely by many experts.
As for making false statements, that carries a penalty of between one to five years in prison or a fine.
Looking at the letter of the law, the counts under the Espionage Act, for example, each carry a maximum sentence of 10 years.
What's it about?
Other counts, related to conspiracy and withholding or concealing documents, each carry maximum sentences of 20 years.
Whether Mr Trump mishandled classified documents by taking them from the White House to his Mar-a-Lago residence after he left office.
Counts relating to a scheme to conceal, and false statements and representations carry sentences of five years each.
It's also about whether he obstructed the FBI's efforts to retrieve the files, as well as the criminal investigation into his handling of them.
But while there is no doubt the charges are serious, many questions remain unanswered about the potential penalties should he be convicted.
The majority of the counts are for the wilful retention of national defence information, which falls under the Espionage Act.
What will his defence be?
There are then eight individual counts, which include conspiracy to obstruct justice, withholding a document or record and making false statements. Mr Trump has pleaded not guilty on all counts.
Mr Trump has pleaded not guilty to all charges and the trial is set to begin on 20 May 2024.
When's the trial?
The former president has offered shifting defences for the material found at his property, mostly arguing that he declassified it. No evidence has been provided that this was possible or is true.
It is scheduled for May, but now looks likely to take place after November's election.
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It could be formally delayed by the judge at a scheduling conference on 1 March.
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What could the punishment be?
Trump supporters outside court: 'They're afraid of him'
These charges could, in theory, lead to substantial prison time if Mr Trump is convicted.
Trump supporters outside court: 'They're afraid of him'
Looking at the letter of the law, the counts under the Espionage Act each carry a maximum sentence of 10 years. Other counts, related to conspiracy and withholding or concealing documents, each carry maximum sentences of 20 years.
His lawyers may argue in court that Mr Trump was unfairly targeted and that other politicians, namely Hillary Clinton, Mike Pence and current President Joe Biden, were never charged for their handling of classified documents.
But the logistics of jailing a former president mean a conventional prison sentence is seen as unlikely by many experts.
But experts say the former president's case is different in a number of ways. For one, other politicians were willing to return whatever documents they had, while prosecutors allege Mr Trump resisted.
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What are the charges in New York hush money case?
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Mr Trump is facing 34 felony counts of falsifying business records in the first degree.
The charges stem from a hush-money payment made before the 2016 election to the adult film star Stormy Daniels, who says she had an adulterous affair with Mr Trump.
While such a payment is not illegal, spending money to help a presidential campaign but not disclosing it violates federal campaign finance law.
What are the potential penalties?
Each of the charges carries a maximum of four years in prison, although a judge could sentence Mr Trump to probation if he is convicted.
Legal experts have told BBC News they think it is unlikely Mr Trump will be jailed if convicted in this case and a fine is the more likely outcome.
What will his defence be?
Mr Trump has pleaded not guilty and is due to stand trial in the case on 25 March 2024.
He denies ever having sexual relations with Ms Daniels and says the payment was made to protect his family from false allegations, not to sway the election.
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