COLUMBUS, Ohio — Republican state House speakers in at least three states are facing open rebellion on their right flanks. The latest test is coming in Ohio’s primaries Tuesday. In recent weeks, Texas House Speaker Dade Phelan got dragged into a primary runoff for his seat by a challenger endorsed by Texas Attorney General Ken Paxton and former President Donald Trump, after Phelan shepherded Paxton’s impeachment last year. In Wisconsin, a recall effort against state Assembly Speaker Robin Vos could fail due to a lack of valid signatures, but his standing on the right is perilous after narrowly surviving a...