As backlash mounts against the Trump administrations policy of separating families caught illegally crossing the border, activists are planning to take their outrage to the streets.

Dozens of advocacy groups, including MoveOn and the American Civil Liberties Union, have joined to organize the Families Belong Together national day of action scheduled for Saturday, June 30.

The main rally will be in Washingtons Lafayette Square, across from the White House, and is scheduled to begin at 11 a.m. As of Tuesday afternoon, more than 6,000 Facebook users had pledged to attend the D.C. demonstration . At least 130 sister marches have been planned nationwide.