BOSTON — Hundreds of immigrants and their supporters have gathered in front of Boston’s historic Faneuil (FAN’-yul) Hall to urge Congress to pass protections for some 800,000 young people brought illegally into the country as children.

The “Defend Our Immigrant Families” rally Wednesday was timed with a larger demonstration in Washington, D.C. and other events across the country. Boston rallygoers were joined by Democratic Boston Mayor Marty Walsh.

Congress has until March to find a solution after President Donald Trump rescinded the Deferred Action for Childhood Arrivals program, or DACA.

Immigrant advocates have been calling for an end-of-year resolution, though congressional leaders suggest the issue might have to wait.

DACA recipients spoke at the rally, as did immigrants living in the U.S. on Temporary Protected Status, another federal program the Trump administration is trying to curtail.