I doubt Trump said this.
If anything it was probably leaked to the press by DeSantis so he can run against Trump and look like the good guy.
Sounds like the media doing anything it can to drive a wedge between and divide the two up.
Turns out it was anti-American RINO McConnell who has been fueling these divisive rumors.
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Mitch McConnell is responsible for ramping up stories of feud between ex-President and Florida Governor Ron DeSantis