President Trump on Friday said "anti-police sentiment is wrong," arguing that America must do a better job of showing appreciation for its law enforcement officers.
"Police departments are overstretched, they're underfunded and they're totally unappreciated," he said at the FBI National Academy's graduation ceremony in Quantico, Virginia.
"This anti-police sentiment is wrong and it is dangerous and we will not stand for it," Trump added. "We as a country must do a better job showing police officers the respect they deserve."
"The president of the United States has your back, 100 percent. I will fight for you and I will never, ever let you down. Now, more than ever, we must support the men and women in blue."
Trump also vowed harsh penalties for criminals who engage in violence against police officers, arguing "every drop of blood spilled from our men and women in blue is a wound inflicted upon our nation."
"I want to send a message today to those who threaten violence against police," he said. "We will protect those who protect us. We believe that criminals who kill police officers should get the death penalty."
Trump also issued a warning to the "killers" and "sadists" in MS-13, a transnational street gang that he has vowed to crack down upon.
"We will throw you the hell out of our country," he said. "In some ways I like it better if we throw them out of the country. If we put them in jail, we have to pay for them."
"These are killers, these are sadists," Trump added before making an apparent jab at so-called "sanctuary cities." "We don't want them here. We don't want them. Get them out of here."
"Our cities shouldn't be sanctuaries for criminals, they should be sanctuaries for our citizens."
President Trump on Friday will participate in the FBI National Academy's graduation ceremony in Quantico, Virginia.
Politico on Friday reported that Trump will then head to the Marine Corps Landing Zone, where he will visit Marine Helicopter Squadron One at a Marine Corps Air Facility.
Trump's visit to the FBI National Academy comes after he tweeted earlier this month that the bureau's "reputation is in Tatters - worst in History."
After years of Comey, with the phony and dishonest Clinton investigation (and more), running the FBI, its reputation is in Tatters - worst in History! But fear not, we will bring it back to greatness.— Donald J. Trump (@realDonaldTrump) December 3, 2017
The president was criticizing former FBI Director James Comey's handling of the bureau before his firing in May, which prompted the appointment of Special Counsel Robert Mueller.
Mueller is investigating Russia's meddling in the 2016 presidential election, including potential collusion between Moscow and Trump's election campaign.