California Democratic Representative Maxine Waters has warned President Donald Trump that he should prepare to be impeached, the latest escalation of rhetoric over alleged Russian involvement in the 2016 election.
Ms Waters has been pressing Congress to quickly impeach Mr Trump if evidence arises of his alleged collusion with the Russian government during the election race.
The Democrat did not cite a particular reason for Mr Trump’s impeachment, but earlier in March said: “The only thing that I am focused on is credible investigations to bring out the facts.
“If the facts are there, then I think we should move very quickly to do something about it.
“And if there was collusion, and any support for undermining our democracy, I think the President should be impeached.”
Ms Water’s tweet comes a day after FBI director James Comey confirmed the agency was investigating possible contact between the Trump campaign and Kremlin officials.
He and National Security Agency boss Michael Rogers also told the Congressional intelligence hearing they believe Russia meddled in the race leading up to the election by hacking the Democratic National Committee and other political organisations.
Ms Waters follows senior senator Dianne Feinstein in suggesting Mr Trump's presidency may come to an end soon. She was asked by a protester: “[Mr Trump] has obvious dealings with Russia [...] How are we going to get him out?”
Ms Feinstein, who sits on the Senate Judiciary Committee, replied: “We have a lot of people looking into this. I think he’s going to get himself out.”
A scandal about contact between the Trump team and Russia has refused to die down, with a string of reports emerging linking officials close to Mr Trump to the Kremlin. The White House has maintained no improper communications took place.