GOP presidential hopeful Ted Cruz’s aggressive plan to shift the tax code from a mostly income-based system to one based on consumption would slash federal revenues by $8.6 trillion over the next decade, according to a new Tax Policy Center analysis. Including interest costs, it would add $10.2 trillion to the debt over 10 years unless Cruz offsets his tax cuts with unprecedented reductions in federal spending. By 2036, Cruz’s plan would add nearly $30 trillion to the debt.

It is hard to grasp the enormity of the tax increases Bernie Sanders is proposing, how far out-of-step he is with recent economic history in the U.S., and what a stunning contrast he presents with Republican presidential hopefuls. Where Sanders backs tax increases of more than $1 trillion a year aimed mostly at high income households, GOP candidates are proposing massive tax cuts that would largely benefit those same taxpayers.

My Tax Policy Center colleague Harvey Galper recently explained why it is important to pay attention to the tax proposals of presidential candidates. While the plans do not always turn into law (at least not exactly as proposed) the ideas tell us a lot about a candidate’s priorities.