BREAKING: Dem Senator Joe Manchin will not vote to confirm controversial Biden appointee Neera Tanden to lead OMB

In a statement, Manchin said that Tanden's "overtly partisan statements will have a toxic and detrimental impact on the important working relationship between members of Congress and the next director of the Office of Management & Budget. For this reason, I cannot support her nomination."

Manchin said that his determination was after a review of Tanden's tweets, which he said "were so personally directed toward my colleagues on both sides of the aisle." These included Tanden's attacks against Senator Bernie Sanders (D-VT) and Senate Minority Leader Mitch McConnell (R-KY).

"As I have said before," Manchin stated, "we must take meaningful steps to end the political division and dysfunction that pervades our politics. At a time of grave crisis, it is more important than ever that we chart a new bipartisan course that helps address the many serious challenges facing our nation."

The Washington Post's White House economics reporter noted that this could give the ax to Tanden's nomination.

The tweets in question include posts in which she called McConnell "Moscow Mitch" and "Voldemort," called Senator Tom Cotton a fraud, and claimed that compared to Senator Ted Cruz, vampires have more heart. She deleted hundreds of tweets.

In response to questions from senators about these comments, Tanden said said "I feel terribly about [the comments], I must have meant them, but I regret them."

Tanden was announced as Biden's pick for a member of his economic team in November. In April, Tanden tweeted opposition to Trump's China travel ban, saying "Once again – his China travel ban, which allowed thousands in from China, didn't remotely stop the virus because it came from Europe. Another Trump flop with this disaster."

These remarks were in response to New York Times article, which argued that "the virus came to the New York area mainly from Europe, not Asia." However, according to the piece, genetic analysis showed that the disease arrived in New York weeks before the CDC confirmed its first case in the state.

Additionally, she supported the Russia collusion hoax, saying unequivocally that Trump colluded with Russia during the 2016 election. Though this supposition has been widely disproven, and shown to actually be a narrative constructed by leftist operatives in the Democratic party, it is still pervasive in those circles.

Senator Josh Hawley had questions about the donations taken by the Center for American Progress, which included hundreds of thousands from big tech companies. Other major donors to the Center for American Progress includes George Soros's Open Society Foundation, the Walton Family Foundation, the Ford Foundation, two Rockefeller organizations, Facebook, Amazon, Google, the Bill & Melinda Gates Foundation, J.P. Morgan, Microsoft, and various others.

The Senate is split along partisan lines, with 50 Republicans and 50 Democrats, and while this means that Vice President Kamala Harris serves as the tie-breaker in the case that the votes are evenly split, Machin's vote in opposition would mean there's no tie to break.