Addressing a rally in Tampa, Fla., Tuesday, the billionaire said: 'You know, if you go out and you want to buy groceries, you need a picture on a card, you need ID.
However, the biggest talker of the night was the president's gaffe as he pushed for tougher voter ID laws, claiming you even need ID to buy groceries.
The 30-second spot continues sprinkled with amusing lines and images - all reinforcing that DeSantis is 100 percent Trump.
It was a sometimes rambling set piece of Trumpian oratory that stretched more than an hour long, featuring plenty of ad-libbed departures from his prepared text, storytelling and anecdotes.
'What could it cost?
Clearly that was a misspeak, but Democrats say it shows how out of touch the president is with real Americans.
Mr. Trump visited Florida to campaign for Rep. Ron DeSantis, who is running in the August 28 GOP primary for governor against former congressman and Florida agriculture commissioner Adam Putnam.
Later, Putnam insisted that he supports Trump just as much as DeSantis does, but added, "If we are going to Make America Great Again, we have to make sure our third largest state is doing our part".
The president's rally begins at 7 p.m.
Polling suggests that DeSantis has overcome Agriculture Commissioner Adam Putnam's once-commanding lead, due nearly exclusively to the president's endorsement. DeSantis has campaigned with Fox's Sean Hannity and Donald Trump Jr. and uses humor in a new ad to show his alliance with the president, teaching one of his two children to "build the wall" with blocks.
"We believe that only American citizens should vote in American elections", he said.