WASHINGTON (AP) — Senate Republican leader Mitch McConnell said Wednesday that his Democratic counterpart is barring any GOP changes to pending defense legislation because he “can’t stomach a vote on Iran sanctions.”

In a blistering speech on the Senate floor, McConnell railed against Democratic leader Harry Reid for changing Senate rules to limit the GOP’s ability to filibuster and complained that Reid was jamming a comprehensive, $632.8 billion bill through the Senate without allowing any amendments.