On Capitol Hill, the Senate convened a rare open debate on immigration Monday, as hundreds of thousands of immigrants who were brought to the United States as children face a March deadline, when the Trump administration will begin canceling the DACA program—or Deferred Action for Childhood Arrivals. The Senate debate comes without a bill currently on the floor; it follows Congress’s passage of a spending bill last week that did not contain protections for DREAMers—a key demand of immigrant rights activists.