Modern monetary theory has been coming up a lot here in the early stages of the Democratic primaries. It’s not at all clear to me that it’s a safe or sane approach, but there are certainly economists who believe it is. Here are a few articles on the subject:
https://www.vice.com/en_us/article/a34n54/modern-monetary-theory-explained
https://krugman.blogs.nytimes.com/2011/03/25/deficits-and-the-printing-press-somewhat-wonkish/