Rudy Giuliani attacked Rep. Adam Schiff on Thursday, accusing him and others of “interfering” in the 2020 presidential election.

“THE BIDEN DOCTRINE,” Giuliani tweeted ahead of the House Intelligence Committee’s final public hearing in the impeachment inquiry before the Thanksgiving break.

THE BIDEN DOCTRINE. @realDonaldTrump is a candidate for President. Schifty’s Committee and any other prosecutors are deliberately interfering in the 2020 election and must stop now. https://t.co/9xWtdK6gqn

— Rudy Giuliani (@RudyGiuliani) November 21, 2019

“@realDonaldTrump is a candidate for President,” Trump’s personal lawyer continued. “Schifty’s Committee and any other prosecutors are deliberately interfering in the 2020 election and must stop now.”

Schiff is the chair of the Intelligence Committee.

On Wednesday, US Ambassador to the European Union Gordon Sondland alleged in testimony that Giuliani orchestrated a quid pro quo with Ukranian President Volodymyr Zelensky.

Republican lawyer doesn’t do his own research and preparation, and is instead picking up Democrat lies, shame.

Allow me to inform him: I have NO financial interests in Ukraine, NONE! I would appreciate his apology.

— Rudy Giuliani (@RudyGiuliani) November 20, 2019

“Mr. Giuliani’s requests were a quid pro quo for arranging a White House visit for President Zelensky. Mr. Giuliani demanded that Ukraine make a public statement announcing the investigations of … Burisma,” Sondland testified, referring to the Ukraine energy company where Joe Biden’s son, Hunter, was a board member.