South Carolina Sen. Jim DeMint on Friday became one of the first high-profile Republicans to publicly criticize John McCain following his electoral defeat, blaming the Arizona senator for betraying conservative principles in his quest for the White House.

The conservative senator, speaking to a group of GOP officials gathered in Myrtle Beach at a conference on the future of the Republican Party, described how the party had strayed from its own "brand," which, according to DeMint, should represent freedom, religious-based values and limited government.