WASHINGTON (AP) — House Republicans pushed legislation on Friday that could clear the way for eventual deportation of more than 500,000 immigrants brought to the U.S. illegally as kids and could address the surge of immigrants at the U.S.-Mexico border.

Yet President Barack Obama said they made a bad bill worse and promised to veto the measure if it reaches his desk. Obama called it “the most extreme and unworkable versions of a bill that they already know is going nowhere” and said he would have to act unilaterally to deal with the border crisis.