Among those spotted in the Washington, D.C. Women's March crowd yesterday was Joshua Kushner, the brother of top Trump advisor (and son-in-law) Jared Kushner.

Sources close to Kushner tell Axios that he's in D.C. supporting his brother, who officially starts work at the White House today, and that he was taking a walk near his hotel when the photo was taken. He also wanted to observe what the source referred to as "a peaceful form of self expression."

Kushner is a serial entrepreneur and venture capitalist who currently leads a New York City investment firm called Thrive Capital. Companies he has co-founded include Brazilian social game company Vostu and U.S. health insurance startup Oscar.