• Our national correspondents were in the field to gauge the reaction to President Trump’s first State of the Union address, called for unity at home and a more muscular America abroad.

One viewer put it this way: “I’m happy with him and I’m embarrassed by him at the same time.”

But Washington’s focus shifted when an Amtrak train carrying Republican members of Congress to a retreat crashed into a large truck, and the F.B.I. director publicly clashed with Mr. Trump over a Republican memo accusing the bureau and the Justice Department of surveillance abuses.