I used to think that the Republicans were 80% the deficit spenders that Democrats were. Maybe that is still safe to say, given the report that the Green New Deal is reported to cost more than the global GDP. And no conservative has justified expense by saying, "Don't worry, we'll never have to pay off our debt," as has been said here by a liberal during the Obama Administration. But, I grant you that the GOP has lost credibility on the debt issue as well. No party leaders, on either side, want fiscal responsibility. Criticizing the debt is now just meaningless political name calling,..like calling someone racist.
I'm on record as supporting cutting everything 20%. Everything. Which makes me politically homeless on this issue. But, maybe if we do that, and pay down the debt to non-world-war levels, we could spend more on climate change.