A document has been unearthed proving John Harwood, the left-wing moderator of Wednesday night’s CNBC debate, lied when he attacked Senator Marco Rubio over his tax plan — and that document is Harwood’s own tweet from just two weeks ago.

Here’s the false gotcha Harwood launched at Rubio:

The Tax Foundation, which was alluded to earlier, scored your tax plan and concluded that you give nearly twice as much of a gain in after-tax income to the top one-percent as to people in the middle of the income scale. Since you’re a champion of Americans living paycheck to paycheck, don’t you have that backward?

Rubio immediately hit Harwood back: “No, you wrote a story on it, you had to go back and correct it.”

Harwood laughed and lied again, “No, I didn’t.”

Except Harwood did. Here’s Harwood’s own tweet from just two weeks ago:

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CORRECTING earlier tweet: Tax Foundation says Rubio benefits lowest 10% proportionally more (55.9) than top 1% (27.9%). Avg for all: 17.8%. — John Harwood (@JohnJHarwood) October 14, 2015

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Harwood also lied about The Tax Foundation findings. According to their study, under Rubio’s plan, the bottom ten percent do twice as well as the top ten percent.

Follow John Nolte on Twitter @NolteNC