South Dakota Senator John Thune is the third ranking republican in the US Senate and has yet to make a Presidential endorsement.
He says he is watching, and waiting……

Thune says he isn’t sure his endorsement would be much help to a candidate………

Thune says it is important that a strong candidate emerge from the republican primaries…..

Senator Mike Rounds has endorsed former Governor Mike Huckabee, while Congresswoman Kristi Noem has endorsed Senator Marco Rubio.