Sen. Lamar AlexanderLamar AlexanderOvernight Healthcare: CBO fallout | GOP senators distance themselves from House bill | Trump budget chief blasts score | Schumer says House bill belongs 'in the trash' GOP senators distance themselves from House ObamaCare repeal bill Republicans give Trump's budget the cold shoulder MORE (R-Tenn.) on Saturday officially unveiled his campaign for a third term.

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Alexander announced that Rep. John J. Duncan will be the chairman of his 2014 reelection campaign and revealed that he will be backed by nearly the entire Tennessee GOP delegation.

Only Rep. Scott DesJarlais, who is under fire for alleged violations of medical ethics for having affairs with patients, is not on board.

Sen. Bob CorkerBob CorkerIs Trump's White House headed into troubled waters? Overnight Tech: FCC won't fine Colbert over Trump joke | Trump budget slashes science funding | Net neutrality comment period opens Clinton administration official knocks 'soap opera' of Trump White House MORE and Reps. Marsha BlackburnMarsha BlackburnOvernight Cybersecurity: Bad Russian intel may have swayed Comey's handling of Clinton probe | Apple sees spike in data requests | More subpoenas for Flynn | DOJ's plan for data warrants Overnight Tech: Internet lobby criticizes GOP privacy bill | Apple sees security requests for user data skyrocket | Airbnb beefs up lobbying Internet lobbying group is skeptical about new privacy bill MORE, Phil Roe, Diane BlackDiane BlackGowdy front-runner to be next Oversight chairman Female lawmakers flee House for higher office, retirement House GOP not sold on Ryan’s tax reform plan MORE, Stephen FincherStephen FincherRep. Fincher to retire Export-Import Bank takes step toward renewal Transportation deal includes Ex-Im renewal MORE and Chuck FleischmannChuck FleischmannGOP torn over what to do next A guide to the committees: House House candidate wants to 'Make America White Again' MORE all co-chair the Alexander campaign.

Tennessee Lt. Gov. Ron Ramsey and Tennessee House Speaker Beth Harwell round out the list.

In making his announcement, Alexander highlighted a need for fiscal discipline.

“Our country has serious problems to solve,” Alexander said. “We must fix the debt and move more decisions out of Washington. We must find better ways to help Americans move from the back of the line to the front in our struggling economy. It is time to stop making speeches and to start getting results.”

Alexander has been working with a bipartisan group of eight other senators to find a deficit grand bargain, including new tax revenue, for the last two years. His openness to tax revenue and compromise had provoked speculation he could face a primary challenge in 2014.

Alexander last year announced he was stepping down as chairman of the Senate Republican Conference to focus on solving the nation’s debt problems. The announcement paved the way for Sen. John CornynJohn CornynMcCain: Dems killed Lieberman’s FBI shot Lieberman no longer considered for FBI chief: report Ex-Bush official: Trump team approached me on replacing Comey MORE (R-Texas) to easily become the minority whip in 2013.