real clear is projecting an even senate
http://www.realclearpolitics.com/epolls/2016/senate/2016_elections_senate_map_no_toss_ups.html
A 50-50 Senate wouldn't be a bad thing, on the other hand. The 34 seats up for election this year included 24 held by Republicans and only 10 held by Democrats. If the Democrats can't win control of the Senate in a year like this, they may not have another good chance for a while.