The dems have a huge problem. Since hillary hasn't announced her intentions, no one is emerging as a potential presidential candidate to challenge her. Not one democrat has emerged from this election showing leadership potential. Obama destroys everyone and everything in his path, so there are no pols that he's helped develop. hillary's pretty much toast against one of "our" candidates (ie: a true constitutional conservative), because of Benghazi and her not being useful in getting dems elected.
We've got not just Ted Cruz and his handful of supporters in the US Senate. Now there's a substantial number of impressive potential future candidates. With Sasse, Ernst, and Cotton joining the US Senate, the strong voices that emerge might well be constitutional conservatives.