https://usafacts.org/articles/how-much-of-the-federal-budget...

> The US government spent $6.2 trillion in total in 2023, with $1.7 trillion on discretionary spending, $3.8 trillion on mandatory spending, and $659 billion on net interest. Discretionary spending includes funding for defense, education, transportation, and scientific research. Approximately half of federal discretionary spending is allocated to defense.

So I suppose I would agree with your assertion that there is a lot to cut if we're talking about cutting defense spending and interest on the debt via more taxes to pay down the debt (to reduce forward debt servicing obligations). Can't keep cutting taxes for the wealthy with the expectation that is going to reduce spending or increase overall federal tax income, as the evidence shows it will not.