Massive anti-Trump protests this weekend are expected to bring thousands of people to downtown and the National Mall. Why it matters: The national "Hands Off!" protest is expected to be the county's largest single-day protest since President Trump took office.

Those balloons, along with an expected thousands of protesters in downtown Los Angeles, are part of the nationwide day of demonstrations, aimed at pushing back against the Trump administration’s spending cuts and mass layoffs of federal workers, which protesters say are threatening essential public services and social safety nets.