There are two things anyone on a budget can do when expenditures outstrip income: 1) cut expenses and 2) increase income. For a lot of us, #2 is pretty hard unless you go on a successful job search, so cutting expenses is the way to go. And that's what Congress has currently been trying to do, not because they can't increase income but because they choose not to. How can Congress increase income? By raising tax rates, reducing tax breaks, eliminating tax cuts, and generally making those who don't pay their fair share do so (see this enlightening video if you think big corporations pay too much).
So why are we cutting services to the most needy while not increasing taxes on the wealthy and corporations? The old investigators' axiom is to follow the money.