On Wednesday morning, shortly before a majority of GOP senators cast their votes for Thune, U.S. Senator Ted Cruz appeared to abandon fellow Texas U.S. Senator John Cornyn, announcing he would back U.S. Senator Rick Scott of Florida for the vaunted position.

Sen. John Cornyn, the state’s senior senator, is running to succeed longtime Republican leader Mitch McConnell of Kentucky. The three-way race for majority leader will be decided this week. Here are five things to know about the race:

Reports on social media from Washington have Sen. John Thune of South Dakota, who serves as Senate Republican whip, winning the leadership role after two rounds of voting by secret ballot. Sen. Rick Scott of Florida, who had earned the support of several allies of President Donald Trump, was reportedly eliminated during the first round of voting.