Obviously she's not a Democrat. She doesn't vote in the US, and if she did she wouldn't have anyone to vote for since the Democrats are far too right wing for her.
By the way, it's "couldn't care less".
"Couldn't" means "could not".
"I couldn't care less" means it is not possible for you to care less about something than you already do, which is what you are trying to say.
"I could care less" means you do care at least a little bit.