Social Fixer is a browser extension that you can install on Chrome, Firefox, and Safari. With this tool you can hide any subjects you don’t want to see, including politics. After you install the extension, a wrench will appear in the top right corner of Facebook. To de-politicize your feed, click the wrench icon > Social Fixer Options > Hide Posts and then add any keywords you want to hide (i.e. President, Trump, White House, Republican, Democrat, engaged, pregnant). When active, posts that mention those keywords will be hidden. The tool will show you that it hid a post and gives you the option to unhide the post.
Social Fixer offers the added bonus of reverting your Newsfeed back to good ol' days of a reverse chronological timeline, where the most recent posts show up first instead of an algorithm deciding the order. Be warned though: Social Fixer only works on desktop, so you’ll just have to avoid using Facebook on your phone or delete the app.