This story has been updated with new developments. The House held a historic vote Tuesday on impeaching Homeland Security Secretary Alejandro Mayorkas—and the move was shot down in a massive defeat for House Speaker Mike Johnson. The speaker had insisted he had enough votes for impeachment, but the measure failed in a 214-216 vote after a handful of Republicans joined Democrats in voting against it. GOP Reps. Ken Buck, Mike Gallagher and Tom McClintock voted against impeachment, CNN reports. Buck and McClintock had already said they would not vote to impeach Mayorkas for allegedly violating th…