NEW: WH sent a letter to Barr accusing Mueller of playing politics with the investigation and wildly straying from his mission. WH says Mueller ignored the regs, abdicated his role as a prosecutor by punting on obstruction.

NEW: WH sent a letter to Barr accusing Mueller of playing politics with the investigation and wildly straying from his mission. WH says Mueller ignored the regs, abdicated his role as a prosecutor by punting on obstruction. w/ @PamelaBrownCNN https://t.co/fkiJJw0J5F

— Marshall Cohen (@MarshallCohen) May 2, 2019