And he joked his campaign would benefit from an update, forced upon him by the impact of coronavirus on the US economy, to his red hat merchandise.
Thousands of Trump supporters around the country wear the red MAGA hats to the president’s events.
In 2019, Mr Trump’s former campaign manager Brad Parscale boasted that they had sold more than one million of the controversial hats and made $45 million from them.
“In my first three years we built the greatest economy in the history of the world and we are doing it again,” said Mr Trump.
“I see the hat Make America Great Again. I am going to add another ‘Again’ so it will be ‘Make America Great Again Again’ this way I can sell you another hat,” said Mr Trump.
“It all goes to the campaign. Make America Great Again Again. No, we did, the greatest economy.”
Meanwhile in California, Trump supporters will be allowed to wear MAGA hats to the polls, while Joe Biden gear is banned.
State election rules prohibit clothing, signs and swag with the name of a specific candidate at polling places.
But that does not apply to slogans such as Make America Great Again or other political phrases such as Black Lives Matter.
Other states, such as New York and Connecticut, also allow clothing with slogans but not a specific candidate’s name or likeness.
States that have banned clothing endorsing a political candidate include California, Delaware, Kansas, Montana, New Jersey, New York, South Carolina, Tennessee, Texas and Vermont.
In California and Texas, political attire cannot be worn within 100 feet of a polling station, while in Delaware it is just 50 feet.
In Iowa, voters can wear political affiliations on their clothing or badges, but they must leave the polling place immediately after casting their ballot.
In Maine, voters may wear a political campaign badge to the polls – but only if it is no bigger than three inches.
Voters who show up at any polling place with overtly political messaging can be asked to cover them up, remove them or leave.
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