With the exception of open political talk, she sounds like a good worker and reasonable person. It’s entirely possible she’ll realize that now she has a position of authority and needs to remain more guarded with her opinions. My advice is to wait and see (and not worry) - things may very well turn out just fine. Most bosses are more interested in employees that don’t cause issues rather than political allies.
“Most bosses are more interested in employees that don’t cause issues rather than political allies.”
I only hope you’re right. If that’s true, she’s got nothing to hold against me.