I get a lot of value from Twitter's AI and computer graphics communities, but I used to see a lot of retweeted political garbage too. I found that Twitter's "mute words" feature works wonders. After muting about 100 words ("trump", "obama", "republican", "democrat", "evil", "lied", "nazi", that obnoxious hand clap emoji, etc) it's like a whole different place. Much less rage-inducing.