How Trump's idea for a photo op led to havoc in a park

New York Times
By Peter Baker, Maggie Haberman, Katie Rogers, Zolan Kanno-Youngs, Katie Benner, Haley Willis, Christiaan Triebert and David Botti

When the history of the Trump presidency is written, the clash with protesters that preceded President Trump's walk across Lafayette Square may be remembered as one of his defining moments.

After a weekend of protests