President Donald Trump attacked Democratic Florida governor candidate Andrew Gillum on Monday as a “thief,” and implied his lack of education as compared to the Republican candidate, Ron DeSantis.

In Florida there is a choice between a Harvard/Yale educated man named @RonDeSantisFL who has been a great Congressman and will be a great Governor – and a Dem who is a thief and who is Mayor of poorly run Tallahassee, said to be one of the most corrupt cities in the Country! — Donald J. Trump (@realDonaldTrump) October 29, 2018

Gillum attended Florida A&M University, where he majored in political science.

The Democratic candidate quickly retorted.

On Twitter there is a choice between having the courage to @ the person you are trash talking, or not. @realDonaldTrump is howling because he’s weak. Florida, go vote today. https://t.co/I8uOokptJA — Andrew Gillum (@AndrewGillum) October 29, 2018

The education jab seems to be a variation of Trump’s favorite criticism of his black critics: questioning their intelligence.

Here’s a good rundown of Trump’s habit, including examples where he called LeBron James, CNN’s Don Lemon and Rep. Maxine Waters (D-CA) — for whom his favorite sobriquet is “low IQ” — unintelligent.