I am totally sick of Trump invading my life.
I get that when elections are on, it's everywhere. But keep it in perspective, yeah? Trump is not invading your life. You can make choices to seriously limit the amount that he's "in your life".
If the partner literally refuses to change the station and limit the amount of election-tv that's on (which sounds a bit unhealthy!!), leave the room, put on some headphones, do a distracting activity. If it's in the newspaper, turn the page. If it's on the radio, put on a cd. And if your tthoughts are totally preoccupied with this man, distract, cbt it, etc. If you've decided who you're going to vote for, there is no reason for the election coverage to be 'invading' your life this much.
If this guy is a 'trigger', in the ptsd-sense, letting him "invade your life" is really unhelpful. Triggers cause us a lot of distress, they're fuel to our bad head space. He reminds you of an abuser (and I'm there with you), but he is not your abuser. He's just a man that is in the media a lot who triggers you. And he doesn't need to be distressing you this much. He really doesn't. When your entering into poetry about Buffalo Bill and it reminds you of him? I'm thinking that this is starting to head towards a bit of a toxic obsession - and is that helpful to you? He is not your abuser. He does not need to be invading your life.
As odious as he is, he is not worthy of the same amount of anger and energy that we direct at our abusers. He's really not. If he's a trigger, that's a good reason to just plain avoid. Avoid like your health depends on it, because it does.
So make the choice, for your own sanity. Thought Diffusion 101: Trump is on the mind again? Thanks brain, but he's had way more airtime than he needs already, next thought.