YANKTON, S.D.(WNAX)- Some national political publications have speculated that South Dakota Senator John Thune may not run for reelection next year.

Thune says he is doing the necessary preparation for another run.

Thune says he doesn’t want to get into campaign mode too quickly.

Thune says it may be difficult for republicans to regain control of the Senate next year.

Thune was first elected to the Senate in 2004.