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The American Airlines Center, the event's venue, has a capacity of about 20,000.

The arena also plays host to the Dallas Mavericks, a basketball team owned by Mark Cuban, who has spoken in support of Trump.

Cuban said he had no doubt Trump would “ kill it ” at the Dallas rally, saying “there is nothing more Texan than being confident and entrepreneurial.”

The tech billionaire has also said he would consider being Trump’s vice president if asked.