Sen. Tim Kaine (D-VA) expects he will get some Senate Republicans to cross the aisle and support his resolution to curb the president’s war powers in Iran.

Kaine filed a resolution last week that requires congressional debate and a vote before the U.S. takes any offensive measures against Iran. On Saturday, President Donald Trump ordered three of Iran’s nuclear sites destroyed by six 30,000-pound bunker-buster bombs and 30 Tomahawk cruise missiles. While Trump had hinted that he would make a decision within the next two weeks of whether to strike, Kaine condemned the move made without notifying Congress.