Some S.C. Republicans think Graham has betrayed the party on these issues.
Cap and trade. Graham has teamed with Democratic U.S. Sen. John Kerry on a plan to put stricter limits on carbon emissions and to give businesses new flexibility to comply. Opponents of the plan say compliance will cost billions, raise the cost of energy and cripple the economy.
Immigration. Graham pushed a failed Bush administration reform plan that offered illegal immigrants paths to citizenship. Critics said the plan amounted to amnesty for lawbreakers.
Bank bailout. Graham supported a Bush administration bailout of AIG and other Wall Street firms on the brink of collapse. Many fiscal conservatives argued the government shouldn't pick winners and losers in the marketplace even if the Bush administration argued the firms were "too big to fail."