J. Scott Applewhite, File, Associated Press
In this March 3, 2015, file photo, Senate Majority Leader Mitch McConnell, R-Ky., speak to the media at the Capitol in Washington.

WASHINGTON — Senate Majority Leader Mitch McConnell is warning he won't hold a confirmation vote for Loretta Lynch as attorney general until the Senate completes work on a bill designed to curb human trafficking.

Lynch is a North Carolina native who would be the first black woman to serve as U.S. attorney general.

McConnell had said he would move to the Lynch nomination this week. But progress on the human trafficking bill is stalled over a dispute about a provision regarding funding for abortions that McConnell says has been federal policy for almost 40 years.

Democratic Sen. Chuck Schumer of New York said Republicans are using any excuse they can to stall the nomination. He said the nominee deserves a vote at a time when terrorist groups threaten the U.S.