Not much? Blogging hit its height about 10 years ago. But people can still make money on it through affiliate marketing, ads, etc. I do these things. And I have both a Patreon and an offer for freelance work.
However, blogs that make money tend to be ones that hit solid marketing topics or topics that are widely popular. Leftist blogging is a bit narrow, though. I cover topics with a good audience, but a relatively small one. If you’re looking to make big money, you should pick a different topic.