Tens of thousands of people from across the US are expected to take part in a demonstration in Washington, DC in support of Gaza on Saturday. The gathering, endorsed by more than 200 organisations, will focus on the Israeli invasion of Rafah. It will take place at 12 pm at Lafayette Park in front of the White House, where attendees wearing red plan on surrounding the building with a two-mile-long red banner symbolising President Joe Biden’s apparent “red line” of an Israeli invasion of Rafah. “This demonstration is happening in an outraged response to the Israeli invasion of Rafah and the atro…