“Federal investigators sought cooperation from Paul Manafort’s son-in-law in an effort to increase pressure on President Trump’s former campaign chairman,” Politico reports.

“Investigators approached Jeffrey Yohai, who has partnered in business deals with Manafort, earlier this summer, setting off ‘real waves’ in Manafort’s orbit, one of these people said. Another of these people said investigators are trying to get ‘into Manafort’s head.'”