Trump calls Biden 'low I.Q. individual' after verbal slip

President TrumpDonald John TrumpDemocrat calls on White House to withdraw ambassador to Belarus nominee TikTok collected data from mobile devices to track Android users: report Peterson wins Minnesota House primary in crucial swing district MORE on Monday called Joe BidenJoe BidenNAACP seeks to boost Black voter turnout in six states Biden touts Trump saying Harris would be 'fine choice' for VP pick Kamala Harris: The conventional (and predictable) pick all along MORE a "low I.Q. individual" after the former vice president had a slip of the tongue and nearly announced he was running for president in 2020.

"Joe Biden got tongue tied over the weekend when he was unable to properly deliver a very simple line about his decision to run for President," Trump tweeted. "Get used to it, another low I.Q. individual!"

Trump has previously deployed the "low I.Q." line of attack against a number of critics, including MSNBC host Mika Brzezinski, Rep. Maxine WatersMaxine Moore WatersMaxine Waters expresses confidence Biden will pick Black woman as VP Bill from Warren, Gillibrand and Waters would make Fed fight economic racial inequalities Waters rips Trump, GOP over mail-in ballots: 'They'll lie, cheat and steal to stay in power' MORE (D-Calif.) and actor Robert De Niro.

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The president was seizing on a mishap from Biden over the weekend where he told a gathering of Delaware Democrats that he has "the most progressive record of anybody running for the ... anybody who would run" for the 2020 nomination.

Attendees began applauding as Biden repeated the phrase, "Of anybody who would run."

Biden has long been mulling a presidential campaign for 2020 and is considered a near certainty to jump in the race.

The former vice president has been an ardent critic of the president, and caused a stir last year when he said he would have "beat the hell out of" Trump in high school over his degrading comments about women.

Biden has typically hovered at or near the top of polling among Democrats on their preferred 2020 candidate. 

A poll released earlier this month showed Biden was the top choice among likely Iowa Democratic caucus participants, garnering 27 percent of the vote. Sen. Bernie SandersBernie SandersBiden wins Connecticut in final presidential primary of year Vermont Rep. Peter Welch easily wins primary Three pros and three cons to Biden picking Harris MORE (I-Vt.) was the first choice of 25 percent of those surveyed.

Should Biden officially announce his candidacy, he would join an increasingly crowded field of presidential hopefuls.

Beto O'RourkeBeto O'RourkeBeto O'Rourke calls Texas GOP 'a death cult' over coronavirus response Hegar, West to face off in bitter Texas Senate runoff Bellwether counties show trouble for Trump MORE, the former Texas congressman, entered the race last week, joining Sanders, Sens. Elizabeth WarrenElizabeth WarrenKamala Harris: The conventional (and predictable) pick all along On The Money: McConnell says it's time to restart coronavirus talks | New report finds majority of Americans support merger moratorium | Corporate bankruptcies on pace for 10-year high Hillicon Valley: Facebook removed over 22 million posts for hate speech in second quarter | Republicans introduce bill to defend universities against hackers targeting COVID-19 research | Facebook's Sandberg backs Harris as VP pick MORE (D-Mass.), Kamala HarrisKamala Devi HarrisNAACP seeks to boost Black voter turnout in six states Biden touts Trump saying Harris would be 'fine choice' for VP pick Kamala Harris: The conventional (and predictable) pick all along MORE (D-Calif.), Amy KlobucharAmy KlobucharCalifornia Dems back Yang after he expresses disappointment over initial DNC lineup Senate Democrats demand answers on migrant child trafficking during pandemic Senate Democrats push to include free phone calls for incarcerated people in next relief package MORE (D-Minn.) and Cory BookerCory Anthony BookerCalifornia Dems back Yang after he expresses disappointment over initial DNC lineup Obamas, Clintons to headline Biden's nominating convention Senators ask for removal of tariffs on EU food, wine, spirits: report MORE, among others.

Trump has previously welcomed the idea of facing off against the former vice president, calling him a "dream opponent." 

Last week, he declined to say whether he viewed Biden or O'Rourke as a stronger challenger, telling reporters "Whoever it is, I'll take him or her on."

Updated at 9:46 a.m.