The U.S. Chamber of Commerce endorsed Sen. John McCain, R-Ariz., giving the former presidential candidate a leg-up on defeating a primary challenge from former Rep. J.D. Hayworth, according to a report in The Hill.
Chamber Vice President Bill Miller said, "On issues ranging from lowering taxes to exposing government waste, Arizona businesses and workers will continue to have no better friend in Washington than John McCain."
McCain opponents, however, used the endorsement to attack the four-term incumbent.
"By accepting the insurance industry financed Chamber of Commerce's endorsement today, John McCain not only sold out his constituents, he sold out what he claimed were his principles," Hari Sevugan, a spokesman for the Democratic National Committee, said in a statement.
"The insurance industry backed Chamber has taken the lead in pouring corporate money into politics and gutting the campaign finance law that bares McCain's name after Citizens' United."
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