Rep. Marjorie Taylor Greene (R-Georgia) threated to oust Rep. Mike Johnson (R-Louisiana) as House speaker when, on March 22, she triggered a “motion to vacate” against him. Greene’s move brought back memories of 2023, when former Speaker Kevin McCarthy (R-California) was ousted from that position following a “motion to vacate” set off by Rep. Matt Gaetz (R-Florida). To her critics, the far-right MAGA congresswoman is a glaring example of why the GOP’s small House majority is in a state of chaos and continues to shrink. But Greene is pointing the finger at former Rep. Ken Buck (R-Colorado), out…