It's a good example though. Why is it we get a conservative into a position of power and then they sell us out?
I think it's because we don't control the purse strings. They get to DC and quickly discover that to get reelected they need to fall in line in order to get money to run a campaign. If we fund a PAC that only supports conservatives and do not give money to the GOP we can control the purse strings. Also, if this is effective the power to endorse or remove endorsement further erodes the DC power elites.
We need to use that money to run primary campaigns AGAINST incumbent Republicans who are NOT conservatives. We need to remove the cancer from the party before we ever hope to bring it to health.