Freedom Caucus chairman locked in tight primary versus Trump-backed challenger NBC News Technology By: Bridget Bowman and Ben Kamisar and Ali Vitali and Kyle Stewart and Wil Courtney and Syedah Asghar 18 June 2024 at 23:56 GOP Rep. Bob Good, the chairman of the House Freedom Caucus, is looking to fend off a primary challenger backed by Donald Trump and Kevin McCarthy on Tuesday.