1. Andrew G. McCabe, who was at the center of F.B.I. investigations into Hillary Clinton’s email use and President Trump’s connections to Russia, stepped down as the F.B.I.’s deputy director. It was a sudden departure under pressure from the F.B.I. chief, Christopher Wray, who raised concerns about a forthcoming inspector general report examining the actions of Mr. McCabe and others.

A secret memo suggests that Republicans, hoping to undermine the Russian inquiry, may target Deputy Attorney General Rod J. Rosenstein, whom President Trump has long distrusted.