"The President may not be a movement conservative, but certainly his Vice President has strong conservative credentials. Political purity is not an option if you wish to win elections in today's America. For conservative activists seeking political power flexibility is a requirement. At this time in our political history, reality must be the operative guide. Conservatives must realize that taking over the Republican Party is going to require much more effort than they have so far exerted. It means hanging tough, getting good young conservatives elected to Congress and state legislatures, educating the public, changing minds."
Exactly right. No majority political party is going to be 'pure'in its doctrine.
But in order to lead the nation, you have to be in power and that means accepting differing views on some non-core issues.
This does not mean compromising on core issues and where the Party should be leading the nation.
The GOP is a conservative Party, there is no alternative.
Ronald Reagan understood this very well, and that's why he accomplished so much.