There aren't many real moderates. There are those who look moderate by comparison, but when you look at their positions...still pretty fucking partisan. Example...Jeb Bush and John Kasich...both exceptionally conservative men who only appear moderate because their party has shifted so far to the right. Another example, my Senator, Claire McCaskill. She appears to be moderate, Missouri is a red state and she's a democrat, supports Clinton and Keystone etc....her vote record is very party line and just as liberal as most other members.
Furthermore, "moderate" Republicans aren't condemning Trump because they agree with his position. Has anyone read the party platform, some of it is pretty out there...I can't imagine what it'll look like after the convention next year.