You can fix a deficit by reducing spending or increasing income.

Things like not cutting taxes when or letting tax cuts expire would help.

Ending programs can help, but not when it's done in unconstitutional ways that result in court expense, the program being reinstated, and backpay for no work. I'm sure some programs have fraud and waste, too; but the fiscally optimal amount of fraud and waste is not usually 0%.

Related: government shutdowns are also a big waste of money. You can blame those on whoever you like, but having them regularly is not fiscally responsible.