No, but I've seen several posts about her here. While I suppose it's possible she's made posts regretting her support of Trump that haven't been posted here I tend to doubt it. You'd think something of that sentiment would be reflected in at least one of the posts that ends up here but I've seen nothing.
I haven't seen anything to indicate she's changed her mind. Not one "I was wrong", no "I regret my vote", nothing but whining about what's happened to her.
You can add "site:[whatever.tld]" to a Google search to restrict results to the specified domain. But as mentioned elsewhere many instances block indexing.
More likely the conspiracy nuts would just go ahead and believe all of them.