California Rep. Maxine Waters is not a member of any of the Congressional committees investigating possible collusion between the Trump campaign and Russian government. She also has no particular insight into Special Counsel Robert Mueller’s probe of Russian meddling. But that didn’t stop the Democratic lawmaker from offering up a “guarantee” on Thursday that Trump colluded with the Kremlin during last year’s presidential campaign.

“Here you have a president who I can tell you and guarantee you is in collusion with the Russians to undermine our democracy,” Waters boldly told an audience at an event for the Congressional Black Caucus Foundation in Washington, D.C.

Waters has been one of Trump’s most vocal critics in the House. Since the election, she has consistently called for the Republican to be impeached, going as far as chanting “Impeach 45” at political rallies.

But Waters offers no specific evidence for why Trump should be impeached. A member of the House Financial Services Committee, Waters generally cites the unproven allegations about Trump’s business dealings and his campaign’s alleged ties to Russia as rationale for removal from office.

In her remarks on Thursday, Waters said that one rebuttal she hears to her calls for impeachment is that the required laws are not in place to warrant impeachment. But Waters proudly noted that Congress can impeach a president for any reason it chooses.

“Impeachment is about whatever the Congress says it is,” bellowed Waters. “There is no law that can dictate impeachment. What the Constitution says is high crimes and misdemeanors, and we define that. Bill Clinton got impeached because he lied.”

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