U.S. presidential candidate Mitt Romney and his new running mate are casting themselves as the duo to bring back America's economy during a multi-state tour.
Romney and Representative Paul Ryan are sweeping through the eastern state of North Carolina on Sunday. The state is considered critical in the race for the White House.

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, and vice presidential candidate Wisconsin Rep. Paul Ryan, R-Wis., wave at the crowd during a campaign event, Aug. 11, 2012 in Norfolk, Va.

Paul Ryan addresses the crowd, Aug. 11, 2012, during a campaign event with Republican presidential candidate, Mitt Romney, not shown, in Norfolk, Va.

Republican U.S. Presidential candidate Mitt Romney (L) introduces Congressman Paul Ryan (R-WI) as his vice-presidential running mate during a campaign event at the retired battleship USS Wisconsin in Norfolk, Virginia, August 11, 2012.

Paul Ryan, and his family, and Republican presidential candidate, former Massachusetts Gov. Mitt Romney and his family, partially visible at center back, wave to the crowd, Aug. 11, 2012, in Norfolk, Va.

Rep. Paul Ryan high-fives people in the crowd after speaking at a campaign event, Aug. 11, 2012, in Norfolk, Va.

Republican presidential candidate Mitt Romney, right, and vice presidential candidate Wisconsin Rep. Paul Ryan are joined by Ryan's daughter Liza as they wave to the crowd, Aug. 11, 2012, in Norfolk, Va.
Romney is hoping Ryan's work in Congress to cut spending and create smaller government will help energize the Republican Party's conservative base.
The pair launched their four-day campaign bus tour on Saturday, immediately after Romney announced the 42-year-old congressman as his vice presidential pick.
President Barack Obama's campaign blasted the pick, saying Ryan put forth a budget that would cut taxes for the wealthy and put more burdens on the middle class and seniors.
Romney, the presumptive Republican nominee, will face President Obama, the presumptive Democratic Party nominee, in the November 6 election.
Some information for this report was provided by AFP and Reuters.