Massive entitlement reform, which are really the primary driver of deficits. You could start by adding a mandatory government-focused 401k plan (add maybe 1% to the payroll tax to fund it) where everyone who works gets an account. Increase the retirement age for people under 50. Adjust the growth rate. And, yes, increase the wage limit (currently capped at $176k) for contributions into the system.

For cuts to government, I don't think you need to recklessly slash & burn where you risk cutting into something that's actually productive. You could probably just cap the budget increases every year (get rid of baseline budgeting) and then let it work itself out over time.

Limited tariffs focused on our enemies where having a supply chain there is problematic (like China) and not on our allies (like Canada, Japan, Vietnam, Mexico) where those supply chains are not problematic.

Staff up the IRS and prevent tax fraud, which is happening en-masse due to limited staffing & enforcement.

An overhaul of our income tax system to simplify it & increase revenue. This means getting rid of many tax credits & deductions that are really spending in disguise. A 1 page tax return (how much did you make * a rate). With a simplified code, it would make the above plan about more enforcement of IRS policies to counter tax fraud easier to implement.

Could also likely beef up estate taxes, which could be used as a compromise tool with Democrats to get them to accept cuts to entitlement programs. Closing the carried interest loophole would also help bring in significant revenue.

Make it easier for accomplished & capable immigrants to come here and stay here to boost population & economic growth. Deregulation focused on making it easier to form businesses and build homes/commercial businesses, as another tool to boost economic growth. An 'all of the above' (drilling, alt energy, etc.) energy policy geared towards making energy cheap & plentiful throughout the US, which can also help growth.

When rates are low during a recession, start issuing longer-term bonds (like 50 and 100 year bonds) to restructure significant chunks of the US debt and push it out over long time frames.