Trump made his latest case against Senate Parliamentarian Elizabeth MacDonough, accusing her of a liberal bias on Wednesday.

Donald Trump is trying to get a key Senate adviser fired.

MacDonough ruled over the weekend that the $1 billion in ballroom funding needs 60 votes, rather than a simple majority, to pass the Senate.

Senate parliamentarian Elizabeth MacDonough blocked an effort to include funding for Trump's White House ballroom in an appropriations bill.