Trump warns DeSantis

Donald Trump warns Ron DeSantis against running for president in 2024

Trump said that doing so would harm the Republican Party

The former president told Fox News, "I think he's making a mistake

He also threatened to release unpleasant information about the 44-year-old, without giving details.

Both have been tipped to be declared presidential contenders and potential rivals for the Republican nomination

Trump's remarks came hours before Tuesday's midterm election that will decide Congress's control.

DeSantis had to announce presidential bid, Trump said there would be no flattery

Trump has previously threatened to release harmful information about rivals.