Too many cooks in the Democratic kitchen as 17 candidates enter the 2020 race, with more to come; A week of Trump policy spins and flips; SE talks to former Starbucks CEO Howard Schultz, who's mulling a 2020 independent run, and Democratic Congressman Seth Moulton, also eyeing a White House bid; House oversight ramps up amid foreign meddling fears; NYC mayor spars with Buzzfeed over unionizing