In order to deal with existing budget obligations, to repair infrastructure, and reduce the existing deficit, excessive tax-cutting by previous administrations must be reversed. It's a matter of paying for what we're spending, it's a matter of fairness, and it's a matter of responsibility.
Let's return to a progressive tax system, rather than the regressive tax system we have now. The Buffet Rule is a good start, now tax capital gains at the same rate as earned income, and return Corporate taxes to the rate they paid in the 1960s.