Are you telling us that the party of golden ballrooms... err.. fiscal responsibility is not actually being fiscally responsible?
You tell me. It's not like the other party is doing better. California is posting a $18 billion deficit next year, despite the highest taxes in the country, and despite record tax revenue from the AI boom.
During Clintons term this turned around to being a 2.3% surplus in 2000. Just 25 years ago the US was spending less than it was taking in tax.
The Bush came in and that surplus became a 3.3% deficit by 2003, and then the GFC crashed it to 9.8%.
While Obama was in, it crawled back from 9.8% deficit to 3.1% by 2016 - same value as before the GFC
Since then it's gone back to 6% of GDP
https://fred.stlouisfed.org/series/FYFSGDA188S