Thread by @SeekerOTL

I'm currently reading a work of fiction; however, the characters are based on real life people, most of whom I can identify.

There is one character, though, that has me completely baffled.

Here are the clues...

* He fought in WWI. The last two years in the OSS, the predecessor to the CIA.

* graduated Harvard Law

* asked by Dulles to work for the CIA

* was a senior member in the Nixon DOJ

* ran for Congress once and lost

* was a partner in a successful law firm

* heavy involved in the Republican Party

* worked on Reagan's 1980 campaign (supported another candidate in the primary)

Does anyone have a guess?

* correction: fought in WWII

I'm leaning toward a combination of Laurence Silberman, Donald Gregg and Richard Allen. No one is a perfect fit.