Of all the whoppers told by both candidates at the debate last night, Hillary Clinton's claim that her programs "won't add a penny" to the national debt may be the biggest.

The Hill:

Hillary Clinton is pledging not to "add a penny to the national debt.”

"I pay for everything I'm proposing," the Democratic presidential nominee said at Wednesday’s debate in Las Vegas. "I do not add a penny to the national debt. I take that very seriously, because I do think it's one of the issues we've got to come to grips with."

She added that she is "going where the money is" and would increase taxes on wealthy individuals and corporations. "There is no evidence whatsoever" that doing this would slow growth, Clinton said, adding the opposite would be the case.

The nonpartisan Committee for a Responsible Federal Budget (CRFB) concluded in a paper in September that Clinton's plan would largely pay for her spending proposals but still raise the debt compared to current law.

The CRFB said that the proposals would increase the national debt by $200 billion over 10 years. However, if revenue from Clinton's unspecified business tax reform is factored in, she would slightly lower deficits, the group found.

Clinton would add significantly less to the debt than Trump's plan would, according to the CRFB. The organization found that Trump would increase the debt by $5.3 trillion over 10 years.

Neither candidate has put forth plans to reduce the debt, which is projected to increase by $9 trillion over 10 years under current law, the CRFB said.

The reason this is a bald-faced lie is that Hillary Clinton knows that her pledge can never be fulfilled.  Current deficits project that by 2026, the national debt will have increased by more than $9 trillion.  Clinton's plan to raise taxes on the "wealthy" and "reform" business taxes is a non-starter in Congress.  So the revenue side of her proposals are a moot point – ain't going to happen.

Meanwhile, Clinton's wild spending plans would raise the debt even more than Trump's plan.  That's because she will refuse to make the necessary adjustments to Medicare, Medicaid, and Social Security.  Those big-ticket items will grow the national debt all by themselves – along with massive increases in servicing the debt once the Fed starts jacking up interest rates.

She won't cut pet Democratic programs.  She won't cut entitlements.  She will add ruinously expensive programs like college loan debt relief.  She will cut defense to the detriment of our ability to defend ourselves, but not enough to make a dent in the debt.

In short, Clinton's claim that she won't add a penny to the national debt is giggle-worthy.