Paul Manafort quits Donald Trump’s Campaign after tumultuous run

Maggie Halberman, New York Times:

Paul Manafort, installed to run Donald J. Trump’s operation after the firing of his original campaign manager, handed in his resignation on Friday, signifying the latest tumult to engulf the candidate, whose standing in the polls has steadily dropped since the Republican Party’s convention in July.

What’s the over-under on how long Stephen Bannon and Kellyanne Conway last?