'Trumpanomics' doesn't compute. The media keep piling on Donald Trump, because he keeps saying things that are controversial, impractical, undesirable and — in some cases — simply impossible. Into this last category has now tumbled something new: Trump told Washington Post reporters Robert Costa and Bob Woodward that he could eliminate the $19 trillion federal debt over "a period of eight years." He won't, even if he wins in a landslide.

To explain: You can't increase military spending (which Trump has promised), preserve Social Security benefits (also a Trump promise), enact a huge tax cut (another proposal) and simultaneously pay off the debt. Trump's budget is awash in glaring contradictions. The math doesn't work. It's virtually impossible to retire all the debt.

A quick look at the budget shows why.