Sorry but that's the worst waste of money there is. They only support RINOs and establishment cadidates. Your money is better spent supporting Jim DeMint's Senate Conservatives Fund.
“They (nrsc) only support RINOs and establishment cadidates. “
The NRSC supports incumbents because it is easier to win as an incumbent. The NRSC supports candidates who are in a close race against a democrat. The NRSC does not support candidates who are winning by a large margin or losing by a large margin.
The end result is that the NRSC often does not give financial support to conservatives like Demint because he basically runs unopposed. They will not give money to either candidate in Texas because they should easily win.
So it appears that the NRSC supports incumbents and rinos like Scott Brown. But it has nothing to do with ideology. It is all about winning seats. Close races that need money are usually rinos running in swing states. The uncompetitive races are conservatives running in deep red states and democrat liberals running in deep blue states.