Former President Donald Trump campaigns at Gaylord Resort in Aurora

DENVER ( KDVR ) — On Friday, former President Donald Trump spoke during a sold-out event at the Gaylord Rockies Resort and Convention Center in Aurora.

The visit comes after Trump said he would come to Aurora during a rally in Uniondale, New York on Sept. 18.

During the speech, Trump primarily focused on immigration and attacking his Democratic rival Kamala Harris.

Notable figures in attendance include Rep. Lauren Boebert, Colorado GOP chairman Dave Williams, and Aurora City Council member Danielle Jurinsky.

Photos from the rally show posters of men who have been identified as members of the Tren de Aragua, as well as a man who pleaded guilty in a deadly DUI crash in Broomfield.

Trump proposes ‘Operation Aurora’ plan

Trump shared his proposal for a plan named “Operation Aurora” to remove immigrants in the country illegally who may be part of criminal gangs.

Ahead of the rally, FOX31 spoke to some Aurora citizens who are excited about his visit and some who aren’t, but most said they hope their city is represented well. Some residents hope Trump will take a boots-on-the-ground approach and visit problem apartments in the city .

The last time the former president was in Colorado was in August when he visited Aspen for a private fundraiser .

The Republican nominee has long promised to stage the largest deportation operation in U.S. history and has made immigration core to his political persona since the day he launched his first campaign in 2015. Over the last few months, Trump has pinpointed specific smaller communities that have seen large arrivals of migrants, with tensions flaring locally over resources and some longtime residents expressing distrust about sudden demographic changes.

How Aurora got on Trump’s radar

Aurora entered the spotlight in August when a video circulated showing armed men walking through an apartment building housing Venezuelan migrants. Trump has claimed extensively that Venezuelan gangs are taking over buildings, even though authorities say that was a single block of the suburb near Denver, and the area is again safe.

Ignoring those denials from local authorities, Trump painted a picture of apartment complexes overrun by “barbaric thugs,” blaming President Joe Biden and Vice President Kamala Harris, Trump’s Democratic rival.

“They’re ruining your state,” Trump said of the Democrats in the White House.

“No person who has inflicted the violence and terror that Kamala Harris has inflicted on this community can ever be allowed to become the president of the United States,” Trump added.

The Associated Press contributed to this report.

For the latest news, weather, sports, and streaming video, head to FOX31 Denver.