The GOP picked up House seats in the 2020 election and the Democrats are continuing to fight amongst each other. The GOP can give AOC their votes for Speaker.
For decades, the Democratic Party lurched to the left while they stayed moored to the legacy of President John F. Kennedy and the rest of the Kennedy clan.
Rep. Alexandria Ocasio-Cortez hasn't completed a full term in the House, but the leftwinger is a force and she has come to dominate energy policy for Democrats.