What do think will happen in 2014? 33 Senate seats will be voted on in 2014, 20 are Democrats and 13 are Republicans.
Current Senate Breakdown:
54 Democrats (2 Independents -Sanders and King)
2 Seats Undecided
---I think the Republicans will be voted in as the majority party in the Senate and retain the majority in the House of Representatives.
Here is article on how they could potentially do that in the Senate: 2014 Senate Elections: Here is the Republican Roadmap to Victory