There was at least one movie they did together and I may be misremembering, but I had thought that she had something positive to say about him while in office.
Claudette Colbert was a friend of the Reagan's. IIRC there was a big deal made out of a trip President Reagan made to some island and the fact that he couldn't stay at her estate because of security. She is one of my favorite actresses, and I think her version of "Imitation of Life" is much better than the more popular one with Lana Turner.