John Thune

Republican Senator John Thune of South Dakota speaks with reporters about the speculation surrounding Mitt Romney s search for a running mate.

Republican Senator John Thune of South Dakota speaks with reporters about the speculation surrounding Mitt Romney’s search for a running mate.

Senate Republican Conference Chair John Thune and Senate Intelligence Chairman Dianne Feinstein

The document can't be taken so seriously when the President punts on every major issue, says Sen. John Thune, (R-SD) and Arthur Brooks, American Enterprise Institute.

For Mitt Romney to do so well in Iowa is a very big story and a great shot in the arm as the campaign moves to New Hampshire, says Sen. John Thune, (R-SD). Thune adds that Romney's campaign can withstand the long road ahead while other GOP candidates will soon drop out of the race.

Sen. John Thune, R-S.D., joins Morning Joe to discuss why he thinks the deficit deal is "directional" and a baby step in the right direction.

When explaining why he chose not to make a run for the White House in 2012, Sen. John Thune said he came to the conclusion that the president would be tough to beat.

When explaining why he chose not to make a run for the White House in 2012, Sen. John Thune said he came to the conclusion that the president would be tough to beat.

Sen. John Thune, R-S.D., joins Morning Joe to discuss why he thinks the deficit deal is "directional" and a baby step in the right direction.