As for who will become Trump's biggest challenger within the party at present, the answer has emerged in this mid-term election battle: the successful re-election of Florida Governor DeSantis. Trump must clear the way for a firm lock on the Republican party's nomination for the 2024 U.S. presidential election. The Republican Party has just elected Trump's "loyal ally" McCarthy as the next speaker of the House of Representatives, intending to replace the Democratic Party's Pelosi.