How Much Sway Does Donald Trump Hold In Republican Primaries?

Tepublicans in the Ohio Senate primary are vying for Trump's endorsement to gain an edge in a crowded field. But Trump's approval doesn't mean an automatic victory: the former president just rescinded an endorsement in the Alabama Senate race, and his candidate was lagging in the polls. This episode: Congressional correspondent Susan Davis, acting congressional correspondent Deirdre Walsh, and national political correspondent Don Gonyea.