WDAY: The News Leader

Published March 26, 2013, 12:00 AM

Senator Tim Johnson

In this Oct. 14, 2009 file photo, Sen. Tim Johnson, D-S.D., is seen on Capitol Hill in Washington. Democratic officials say Johnson intends to announce his retirement on Tuesday, March 26, 2013, a decision that gives Republicans a prime opportunity to pick up a seat in 2014. (AP Photo/Haraz N. Ghanbari, File)
Read the article: South Dakota Senator Tim Johnson retirement opens door for GOP