WASHINGTON — Thousands of people from cities across the country gathered outside the White House on Saturday to protest the Biden administration’s policies toward the Israel-Hamas war, many dressed in keffiyehs and red clothes to symbolize what they say is a red line that Israel crossed.

Hundreds of protesters held a red banner that stretched around the White House, urging President Joe Biden to change his approach to the war in Gaza.

“Biden, Biden you can’t hide, we are your red…