Republican lawmakers are calling on President Joe Biden to resign after he announced Sunday that he will no longer seek reelection. "If Joe Biden is not fit to run for President, he is not fit to serve as President," Speaker of the House Mike Johnson said in a post on X after Biden announced his decision. "He must resign the office immediately." Other congressional Republicans, including House Republican Conference Chair Rep. Elise Stefanik and the National Republican Senatorial Committee, echoed Johnson's message. Some even raised the prospect of invoking the 25th Amendment. "Biden is a national security threat in great cognitive decline and a