Michael Cohen reaches plea deal with Mueller -- and he'll offer new 'testimony potentially damaging to Trump': report
President Donald Trump's longtime personal attorney Michael Cohen (Screen capture)

Former Trump "fixer" Michael Cohen has reached a new plea deal with special counsel Robert Mueller in which he will offer "potentially damaging" testimony against President Donald Trump.

According to ABC News' George Stephanopoulos, Cohen will plead guilty to making false statements to Congress during past testimony, and he will then provide "dozens of hours of testimony" that is "potentially damaging" to the president. While it's not clear what testimony Cohen will provide, Stephanopoulos says that the special counsel's office finds the information he's offering valuable.

ABC News' sources say that Cohen is now admitting that he lied to Congress in closed-door testimony about contacts that he'd had with Russian nationals during the 2016 presidential campaign.

Earlier this year, Cohen pleaded guilty to making illegal hush money payments to adult film star Stormy Daniels and Playboy model Karen McDougal “at the direction” of Trump, who was described in the plea as a candidate for federal office.

Cohen also admitted in his plea that he made the illegal payment “for the purpose of influencing” the 2016 presidential election by covering up the president’s “alleged affairs.”