Sen. Lindsey GrahamLindsey Olin GrahamSenate braces for a nasty debt ceiling fight Bipartisan group says it's still on track after setback on Senate floor How Sen. Graham can help fix the labor shortage with commonsense immigration reform MORE (R-S.C.) predicted Sunday that Congress would pick up Chinese currency manipulation after President Obama was rebuffed on the issue at the G-20 summit.

The leaders of the world's top 20 economies refused to get behind a U.S. effort in Seoul this weekend to condemn "competitive devaluation" of currencies.

"The currency issue was disappointing to me," Graham said on ABC's "This Week."


"Clearly, China does manipulate the value of the yuan to get an advantage in exports. They already have enough advantages. I was disappointed with the other nations who would not get behind President Obama to push the Chinese to change their currency policy."

He called the meetings "dispappointing" on the front of a lack of a trade agreement with South Korea and no movement in the currency fight with China.

"And I think you're going to see the Congress get more involved on the currency front after this trip," Graham said.

House Democrats advanced a currency manipulation bill before Congress left for the campaign recess.

"For years, the Bush Administration, the Obama Administration, and Members of Congress have tried to persuade the Chinese government to allow its currency to respond to market forces. No significant progress has been made," House Speaker Nancy Pelosi (D-Calif.) said then. "It is time for Congress to pass legislation that will give the Administration leverage in its bilateral and multilateral negotiations with the Chinese government – so that U.S. businesses and workers have a more level playing field in world trade."