Just a link-free, quick observation: while I expect the House to not shift too much over the next few cycles (we will pick up some seats in 2014, probably, and lose some seats in 2016, probably*), I AM expecting a fairly large shakeup in the Senate in 2014, 2016, and 2018. Why? Simple: in 2008 and 2010 we had somewhat drastic swings in Senate representation, and a slightly drastic one in 2006. That means that 2014 and 2016 will have a good number of freshmen Senators being checked for the first time; and while the 2018 election will have less freshmen to be tested, some of the Democrats that did survive last cycle shouldn’t have.
So it should be brisk business for the the NRSC and DSCC for the next six years or so.
That’s it. And that’s a guess, honestly.
*And that will have no link whatsoever to whoever wins the Presidential election.