WASHINGTON (AP) — The Senate is moving forward with a power-sharing agreement in the evenly-split chamber after Republican leader Mitch McConnell backed off his demand that Senate Democrats preserve the procedural tool known as the filibuster. The stand-off between McConnell and new Senate Majority Leader Chuck Schumer had all but ground the Senate to a halt in the early days of the Democratic majority and threatened President Joe Biden’s agenda. Schumer refused to meet McConnell’s demands. But the debate over the filibuster is far from over. McConnell warned Tuesday of all the ways the Senate business could still be tied in knots if Democrats try to press on with plans to pursue changes to the filibuster.