After the Democratic Party started to panic over predictions of the likelihood of a debacle this coming November, it became clear that it is far from certain that the Senate will be lost, although one can certainly concede the loss of seats, and the fact that the change in House seats might be a few, but not a dramatic difference! In fact, with the reality of total gridlock in the House, and the worst legislative record under Speaker John Boehner in modern history, the Democrats might gain a few seats, although not likely to have a majority, as now projected.
The Republican Party needs to gain 6 seats in the Senate to have control, and while there are many Democratic seats up, and a lot of Democrats are retiring, that is still not a sign of GOP success, as they are very good at self destruction, and are on that road again.
The Tea Party Movement is certain to cause the loss of some traditional conservatives in the Senate, and to increase the chances of defeating a few GOP senators, to overcome the fact that there are more Democratic seats in contention.
And again, even if both houses are Republican, by 2016, the Senate is sure to be won back, and the House might go Democratic with a strong Presidential candidate heading the ticket, such as Hillary Clinton or Joe Biden!
The long term prognosis for the Republican Party is gloomy, while the long term prognosis for the Democrats is excellent!