The latest in the Capital Journal.Here's a snippet:
South Dakota is one of several states where Republicans are competitive, if not likely, to pick up a seat in the U.S. Senate. There are as many as a dozen seats currently being held by Democrats that are at least plausible pick-ups. In some cases, as in South Dakota, the Republican candidate is a clear favorite.
Why this GOP advantage? Partially it is timing. The 2008 election, spurred by Barack Obama, sent many Democrats into office. Democratic Senators elected that year are now up for re-election. Because of that 2008 success, Democrats now have more seats to defend.
Also, the Obama coattails in 2008 brought some marginal Democrats into office. In states such as North Carolina, Alaska, and Arkansas, Democrats won in normally “red” Republican states. Without Obama on the ticket in 2014, to say nothing of the president’s decline in popularity, these marginal Democrats find themselves imperiled.