Lesson I’ve learned the hard way: Though you may hold your nose and vote for a RINO, the stink never goes away.
There are those who refuse to vote for anything other than a "true" conservative, and as a result, lose most of the time.
Then there are the "Reagan conservatives", that realize that getting someone who will vote your side 60-80% of the time elected is more important than voting for a "true conservative" who can't win and getting a Dem elected who will vote against your side 95% of the time...