The GOP will lose seats in the House, but, I think, retain a majority. In the Senate, we have the same situation as 2014, only with the parties reversed. That will go Dem. The Presidency, Dem. The GOP has a severe image problem with the far right wingnuts setting the agenda.
Not it won't. Just a handful of the 24 senate seats are 'vulnerable'
According to the info in this link Johnson of Wisconsin, Toomey of PA and Kirk in Illinois....There is also the seat held by Rubio in Florida which is a toss up.
For Democrats, the seat held by fmr Sen majority leader Harry Reed is up for grabs. It will be interesting to see if Nevada which has leaned democrat in recent POTUS elections does not tilt back to the right
It looks like if the tea leaves are being read correctly the dems may pick up 1-3 seats giving them 49.
Senate 2016: Sorting Out the Democrats' Best Targets - Rasmussen Reportsâ„¢