Mary Kay Linge documents for the New York Post the worst gaffes of the next American president.

“I am a gaffe machine,” Joe Biden admitted in 2018.

Throughout his 47 years in public life, our presumptive president-elect has had a habit of letting his glib tongue run ahead of his brain.

Just last week, Biden raised eyebrows with a garbled explanation of how he and his soon-to-be veep, Kamala Harris, would resolve a serious disagreement.

“I will develop some disease and say I have to resign,” he told CNN, as Harris shook her head in bewilderment.

Many supporters see Biden’s verbal stumbles as endearing — but his chronic case of foot-in-mouth often reveals his ornery side. …

… “A Much Higher IQ,” 1987

Three decades ago, Biden’s verbal attack on a voter at a New Hampshire house party helped derail his first presidential campaign.

When Claremont, NH, high-school teacher Frank Fahey asked Biden what law school he attended, the then-senator from Delaware melted down.

“I probably have a much higher IQ than you do, I suspect,” Biden snapped as he expounded on a glittering academic record that, reporters later found, was largely imaginary. …

… Debate debacle, 2012

Voters cringed through the vice-presidential debate between Biden and Republican Paul Ryan in 2012, as the hyper-aggressive veep put on a bravura 90-minute display of mugging and eye-rolling.

“Oh, now you’re Jack Kennedy?” Biden broke in as Ryan explained how the GOP’s tax-cut plan mirrored Kennedy’s in 1960.

“Look, this is a bunch of stuff,” he exclaimed later.

All told, Biden interrupted Ryan 85 times with sudden guffaws and dismissive interjections — a heckling strategy much like the one that Donald Trump turned on Biden in their first debate this year.
“You Stupid Bastards,” 2016

A peevish Biden scolded American troops for their tepid response to a set-up applause line in 2016.

“Clap for that, you stupid bastards,” the vice-president barked, minutes into his speech to the 380th Air Expeditionary Wing stationed in Abu Dhabi.