In his resignation letter to Ronna McDaniel, the RNC chair, Cohen cited the ongoing special counsel investigation as one reason for his departure. ABC News has reviewed the email…

Cohen also criticized the administration’s policy of separating migrant children from their parents at the southern border, the first time he’s distanced himself from the president.

“As the son of a Polish holocaust survivor, the images and sounds of this family separation policy is heart wrenching,” Cohen wrote. “While I strongly support measures that will secure our porous borders, children should never be used as bargaining chips.”