Attorney Sidney Powell, who filed third-party lawsuits on behalf of President Donald Trump, said that Republicans in Congress should back Trump’s election challenge if the Republican Party hopes to survive.

“[Trump] won more than 305 electoral votes & the popular vote as well. You won in the greatest landslide in history,” Powell wrote on Twitter, suggesting that if election fraud was dealt with properly in the courts or in state legislatures, the president would have at least 305 Electoral College votes.

“If the [Republican National Committee] hopes to survive, every Republican should stand up for you now,” she said, adding that “a multi-billion-[dollar] donor told me there’s no point donating at all when [the] election is rigged.”

Later, the former federal prosecutor said that the upcoming Georgia runoff election for seats held by Sens. Kelly Loeffler (R-Ga) and David Perdue (R-Ga.) could be tainted as well.

“Maybe they already won outright. Maybe someone else won? How do you have a runoff from a failed and fraudulent first election? Get the first one right first,” Powell, a lawyer who successfully represented retired Army Lt. Gen Michael Flynn, asked on Twitter.

It comes as Trump recently criticized GOP members of the Senate and House for not taking up his $2,000 stimulus check proposal, saying Senate Majority Leader Mitch McConnell (R-Ky.) and his allies have a “death wish.”

“Unless Republicans have a death wish, and it is also the right thing to do, they must approve the $2,000 payments ASAP. $600 IS NOT ENOUGH!” Trump wrote on Twitter. McConnell blocked an attempt to pass the $2,000 CASH Act after Senate Democratic Leader Chuck Schumer (D-N.Y.) made a request for unanimous consent.

Several Republican senators expressed their support for the bill.

Now, Democrats in Congress are highlighting McConnell’s move in light of the Georgia Senate runoff elections.

“Mitch McConnell, Kelly Loeffler & David Perdue are standing between your family and a $2,000 survival check Georgia,” Rep. Ayanna Pressley (D-Mass.) wrote in a tweet on Tuesday, saying Georgians should vote for Raphael Warnock and Jon Ossoff, both Democrats. Loeffler and Perdue have said they support the $2,000 stimulus payments.

McConnell later Tuesday introduced a bill that combines the $2,000 payments with a repeal of Section 230 of the Communications Decency Act—although Democrats have said the bill is designed to fail.

Sen. Dick Durbin (D-Ill.) told CNN on Tuesday that McConnell is attempting to “throw a few poison pills in there” to discourage senators from voting on the package this week.

“Let me throw in a reform of the Internet while we’re at it here. Let’s do some work here and investigate the last election. For goodness sake, stop looking for poison pills, Sen. McConnell, pass this right now. America needs it,” he said.