The U.S. Senate has reached an agreement to approve the reauthorization of a controversial surveillance program and plans to vote on it on Friday night, Senate Majority Leader Chuck Schumer said.

Senate Majority Leader Chuck Schumer on Friday said “disagreements remain” between Democrats and Republicans as they seek an amendment agreement that would allow them to renew a key intelligence community surveillance tool before it goes dark at the end of the day.

The Senate missed a midnight deadline to reauthorize FISA, the controversial spy law, as privacy-minded senators protest the expansion of surveillance powers.