OK, Fox News might object to being called "mainstream", but it's a lot wider audience than MMT has ever gotten before, AFAIK. Tucker Carlson interviewed a Duke University professor, Mark Paul, about a job guarantee. Don't put too much stock in the headline ("Takes On"). If you haven't seen Tucker before, he is staunchly conservative/libertarian, but quite civil as long as his interviewees are civil.
It turns out, he was somewhat sympathetic, in the end.
There was a lot they didn't discuss, which is a shame, but it was a short interview. They didn't get to the best feature of JG, IMHO, which is that people with jobs mostly don't join gangs, sell illegal drugs for a living, shoot their neighbors and burn down their businesses. They are hopeful about their lives, not desperate.
May this be just the beginning of the dialogue.