Rob Lowe continuing his mystery trip to D.C. Monday morning, with a camera crew trailing through the lobby of the Library of Congress. Unclear what he’s filming. He resurfaced for lunch at Founding Farmers with three guests. Had the chili and a grapefruit soda, shared the brown-butter-sage popcorn.

Michelle Obama lunching Saturday with her daughters at downtown’s new Hamilton restaurant. Chicken and biscuits, white bean soup and a bento box. The whole family wrapped up the weekend by checking out the “30 Americans” exhibit at the Corcoran Sunday afternoon.