In the upcoming Congress, Speaker Mike Johnson will confront a significant hurdle due to the narrowest House majority in nearly a century. With Republicans set to control the House, Senate, and White House, the slim margins could jeopardize President-elect Donald Trump's agenda. The House majority stands at 220 Republicans to 215 Democrats, the closest division since the Great Depression.
However, this margin is expected to shrink further, with the GOP majority likely to decrease to 217 due to vacancies. Passing legislation in the House requires a minimum of 218 votes, making every vote crucial. Any defection could hinder the party's ability to pass bills along party lines.
