Senate supplemental vote may result in tie

The Iraq supplemental slated for markup today in the Senate Appropriations Committee will likely include a version of the troop withdrawal language offered earlier this month by Democratic leaders, but the absence of the rehabilitating Sen. Tim JohnsonTim JohnsonCourt ruling could be game changer for Dems in Nevada Bank lobbyists counting down to Shelby’s exit Former GOP senator endorses Clinton after Orlando shooting MORE (D-S.D.) could jeopardize panel passage of the war-funding bill.

Johnson will be able to cast votes by proxy on amendments and motions during the markup, but not on final passage, according to a Senate Democratic aide. Because Democrats hold a one-vote majority on Appropriations, a party-line vote on the supplemental without Johnson would result in a tie.

However, Senate procedures leave room to maneuver in the case of a tie vote in committee, ensuring that the supplemental still can proceed to the floor.