WATCH: President Trump holding rally in Minneapolis
President Donald Trump held a massive campaign rally Minneapolis, Minnesota among thousands of supporters.
President Trump started off the rally decrying what he says is a "wretched Washington swamp" that is trying to overturn the results of the 2016 election.
Trump said the swamp wants to "erase your vote like it never existed."
But he said the swamp will fail because "in America, the people rule again."
President Trump took some time to speak on potential Democratic presidential rival Joe Biden.
Trump said Biden became Barack Obama's vice president because he knew how to curry favor with Obama.
The president also spoke on his son, Hunter Biden, suggesting a T-shirt that says "Where's Hunter?"
Trump has claimed that the Bidens used their family name to get China and Ukraine to pay them millions of dollars.
The Democratic-controlled House opened an impeachment inquiry after a whistleblower complained about Trump's supposed dealings with Ukraine and alleged Trump was abusing his public office for personal political gain.
Trump later released a rough transcript of a phone conversation with Ukraine's president in which he asks for an investigation of Biden.
President Trump called Minnesota Rep. Ilhan Omar "a disgrace to our country," reminding supporters of remarks she made on Israel that some people saw as anti-Semitic. Omar denied any anti-Semitic intent but apologized for them.
President Trump also brought the head of the Minneapolis police union onstage to thank him for a high-profile fight over whether the city's officers could wear their uniforms while backing the president.
Lt. Bob Kroll sparred with the city's Democratic mayor this week over a policy that prohibits officers from wearing uniforms at political events or in political advertisements.
Mayor Jacob Frey said the policy wasn't new and said the police force must be nonpartisan.
Trump called Frey a "very weak mayor" and Kroll a "great man."
Kroll and several other people, all wearing bright red "Cops for Trump" T-shirts, came on stage during Trump's rally Thursday night in Minneapolis.
Kroll asked, "How can you thank this guy for everything he's done for law enforcement?"
He called Trump a "wonderful president."
President Trump criticized Minnesota for accepting large numbers of refugees from Somalia and spoke about his own efforts to cut the flow of refugees into the United States.
Minneapolis is home to the largest population of Somalis in the United States.
The president said the city and state allowed refugees in without considering the impact on schools, the community and taxpayers.
Trump said he has cut refugee resettlement by 85 percent and said Democrats will throw open the nation's borders if they regain power.
The remarks were reminiscent of Trump's campaign appearance in Minneapolis shortly before the 2016 election, when he described Somali resettlement as "the disaster taking place in Minnesota."