Sen. Rick Scott (R-FL) will challenge current U.S. Senate Republican leader Mitch McConnell for leadership of Senate Republicans in an election on Wednesday, he said on Tuesday, according to Newsmax.

Republicans had been expected to hold a vote to pick their party leader on Wednesday morning, following midterm elections last week in which they lost control of the Senate.

McConnell, who has not faced opposition for the job since he became the Republican leader in 2007, is seeking to become the longest-serving party leader in the chamber.

Scott announced to his colleagues at Tuesday’s lunch that he was challenging McConnell for the post, his spokesman said.

Scott also sent colleagues a letter outlining his reasons for the challenge, saying he’d heard complaints about the process and priorities of the Senate and about the lack of coordination between House and Senate Republicans.

“I believe it’s time for the Senate Republican Conference to be far more bold and resolute than we have been in the past. We must start saying what we are for, not just what we are against,” Scott wrote.

McConnell however feels confident that he has the votes to remain Senate GOP Leader, despite a challenge from Sen. Rick Scott.