Scott Reed, the Chamber’s longtime senior political strategist, has resigned, according to the New York Times‘ Maggie Haberman.

“Scott Reed, who’s been the top political strategist at the US Chamber for years, tells me he has resigned, amid a perceived drift to the left at the Chamber on heels of nearly two dozen endorsements of House Dems,” Haberman posted online.

Sources familiar with the matter told Breitbart News that Reed’s decision to resign came after he was not allowed by executives to spend money helping vulnerable Senate Republicans in their races, such as Senators Joni Ernst (R-IA), Martha McSally (R-AZ), and Thom Tillis (R-NC).