Watch Clip
Jonathan Karl explores Trump's grasp on GOP in new book
7m 10s
With a year before Election Day, polls show former President Trump continues to lead the Republican field and could likely be the party’s nominee to challenge President Joe Biden. Jonathan Karl is ABC's chief Washington correspondent and the author of, "Tired of Winning: Donald Trump and the End of the Grand Old Party." He joined Amna Nawaz to discuss Trump's influence over Republicans.