ABC News Correspondent Arlette Saenz: The straw that broke the camel’s back on Bannon is unknown

In this photo taken Feb. 16, 2017, President Donald Trump's White House Senior Adviser Steve Bannon arrives for a news conference with President Donald Trump in the East Room of the White House in Washington. Bannon, a forceful but divisive presence in President Donald Trump's White House, is leaving. Trump accepted Bannon's resignation Friday, Aug. 18, 2017, ending a turbulent seven months for his chief strategist, the latest to depart from the president's administration in turmoil. (AP Photo/Andrew Harnik)

ABC News Correspondent Arlette Saenz joins John to rationalize the resignation of Chief Strategist Steve Bannon. A lot of questions crop up from this resignation, like who is next to go.