Now I am a little curious though. When did Taylor Swift start getting involved with politics? You don't have to give too much details, if you don't want.
Erm, I'd really have to research this to go into any great depth, I'm no expert. But when I say that she's politically influential, I mean that in the celebrity sense that she's big and famous and has a huge platform. She's made a few statements and written open letters on some issues. which were widely publicised.
Cynically, one could say she only started this once a number of her fans started wondering why she was keeping quiet (which was a deliberate decision, she didn't want to alienate rightwingers), when lots of others in her position were not. She even had a big neo-nazi following she neglected to denounce. It's also been pointed out that in the past she had been quick to bring up feminism when she was being unfairly criticised for her lifestyle or relationship, but otherwise didn't tend to bring it up. But it started a bit after Trump got elected. She started being vocally progressive, but got a lot of acclaim for fairly minor stuff.
Now, I'm not privy to her innermost thoughts and feelings, maybe she wanted to keep her mouth shut and get on with her job and nobody's perfect. But it's also quite plausible that she decided that becoming (somewhat) political would be good for her career, that it's tokenism. No idea.