Sen. Mitch McConnell (R-Ky.) on Tuesday announced his opposition to the Senate resolution that would authorize the use of force in Syria.

McConnell becomes the only top party leader in Congress to oppose the use of military force, as Senate Majority Leader Harry Reid (D-Nev.), House Speaker John Boehner (R-Ohio) and House Minority Leader Nancy Pelosi (D-Calif.) are all in favor.

McConnell said he had no faith that the Obama administration could execute an appropriate response.

"...Ultimately, I’ve concluded that being credible on Syria requires presenting a credible response, and having a credible strategy," McConnell said on the Senate floor, according to prepared remarks. "And for all the reasons I’ve indicated, this proposal just doesn’t pass muster."

McConnell added: "It is long past time this President drops the pose of the reluctant warrior — and lead."

McConnell faces a well-funded primary challenger, businessman Matt Bevin, and a tough general election in 2014 against Kentucky Secretary of State Alison Lundergan Grimes.

He is considered Democrats' top target next year.