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As president of the United States, Donald Trump enjoyed unique protection from legal action, be it criminal or civil.
Now, after losing the 2020 presidential election, Mr Trump will soon become a private citizen again.
That means he will lose his presidential privileges, putting him in the crosshairs of litigators and prosecutors.
"Once he is out of office, the atmosphere will change," Daniel R Alonso, a former US federal and New York state prosecutor, told the BBC. "He will no longer have the reality or the threat of presidential power to thwart investigations."
A wide-ranging criminal investigation in New York is the most serious legal concern for Mr Trump and his real-estate company, the Trump Organization.
On top of that, there is an array of lawsuits ranging from allegations of fraud by a family member to sexual harassment by an advice columnist.
A legal storm is brewing. Here, we consider how the six biggest legal battles may develop.
1) The hush-money allegations
What we know: Playboy model Karen McDougal, adult film actress Stormy Daniels and claims of a conspiracy of silence.
This was the gist of the so-called hush-money scandal. Both women said they had had sexual relationships with Mr Trump and had received payments to keep them quiet, ahead of the 2016 presidential election.
When they spoke out in 2018, they threw political dynamite under Mr Trump's presidency, lighting the fuse of two criminal investigations.
The first focused on violations of federal, or national, laws and the role of Michael Cohen, Mr Trump's former personal lawyer and "fixer".