Trump stepped up his rhetoric against Clinton in the fight for minority voters.
Nigel Farage made an appearance with Trump at his Mississippi rally.
Clinton's lead had tightened from earlier this month in the online poll.
The speech had previously been scheduled for Thursday in Colorado.
Those in the country illegally will "pay back-taxes," Trump said.
Jonathan Swan 08/24/16 06:52 PM EDT
The private foundation run by the Clinton family has become the latest firestorm in the 2016...
Welcome to THE TRAIL 2016, your daily rundown from The Hill on all the latest news in the White House, Senate and House races.
Hillary Clinton will try to shift the narrative about race in the 2016 election in a Thursday...
Ed Feulner has joined the transition team.
Nigel Farage is expected to speak at Trump's rally.
"I don't want to talk about that," Trump says.