This weekend Senators John Thune and Ron Johnson indicated they would seek reelection. Thune and Johnson were the final two Senators to announce their reelection plans. Summary The final two Senators to announce their reelection plans clarified their thinking this weekend. Senator John Thune (R-SD) announced on Twitter he will seek a fourth term Saturday. Senator Ron Johnson (R-WI) used the Wall Street Journal‘s opinion pages to declare his bid for a third term Sunday morning. Thune, the Senate Minority Whip, …