UPDATE OCT. 4: President Trump arrived in Las Vegas at approximately 9:30 a.m. Wednesday. He was met by Gov. Brian Sandoval, Attorney General Adam Laxalt, Las Vegas Mayor Carolyn Goodman and Clark County Sheriff Joe Lombardo.
Sen. Dean Heller was on the cross country flight from D.C. with Trump. He says on the plane, they talked about what happened Sunday, and Heller says Trump shared the same concerns as many in the country. He says Trump was concerned how something like this could happen from someone completely off the radar.
After arrival, he traveled to University Medical Center and met privately with hospital staff and patients.
Trump told the press after the visit that he met some of the most amazing people and that he invited the patients to the White House. He also noted that many of the wounded were heroes.
Next, he stopped by the Las Vegas Metropolitan Police Department headquarters on Martin Luther King Boulevard. He spoke with many of the officers and others there before making a few remarks to those gathered.
Charlotte Gentry with Las Vegas Fire and Rescue was one of the 30 to 40 first responders who got to meet the president. She says it was a humbling experience.
"It went from being one of the worst days of our lives to one of the best, that the president would come out here and make an effort," she says.
The president was accompanied by First Lady Melania Trump. Sandoval introduced President Trump at LVMPD's headquarters.
After his speech, President Trump and his wife went back to McCarran International Airport.
President Donald Trump will visit Las Vegas on Wednesday in response to the mass shooting on Sunday night that claimed dozens of lives and injured hundreds.
His plane is expected to land Wednesday morning. He will then visit a local hospital, according to Politico.com.
Trump called the shooting "an act of pure evil" on Monday. He also praised law enforcement officers and who others who responded quickly to the scene.
He first responded to the shooting with a tweet on Monday that expressed his condolences.