President Trump announced from the White House Rose Garden Monday evening that he is "mobilizing all available federal resources, civilian and military" to stop violent protests across the country, decrying "professional anarchists, looters, criminals, antifa and others" whose actions have "gripped" the nation.

The backdrop: Trump's announcement came as police clashed with protesters just outside of the White House, using tear gas and rubber bullets to disperse crowds chanting, "Hands up, don't shoot," and other slogans. Flash bangs used outside the White House could be heard from the Rose Garden.

What he said:

  • "Today, I have strongly recommended to every governor to deploy the National Guard in sufficient numbers that we dominate the streets. Mayors and governors must establish an overwhelming presence until the violence is quelled."
  • "If a city or state refuses to take the actions necessary to defend the life and property of their residents, then I will deploy the United States military and quickly solve the problem for them."
  • "I am also taking swift and decisive action to protect our capital, Washington D.C.. ... As we speak, I am dispatching thousands and thousands of heavily armed soldiers, military personnel and law enforcement officers to stop the rioting, looting, vandalism, assaults and wanton destruction of property. We are putting everybody on warning."

Between the lines: In order to deploy U.S. active-duty personnel to conduct law enforcement on American soil, the president must invoke the 1807 Insurrection Act. It has been used several times in U.S. history, including by President George H.W. Bush during the 1992 Los Angeles Riots.

  • Trump has not yet enacted the Insurrection Act, according to a senior defense official.
  • The Pentagon has not received any requests from states asking for military assistance as of 10pm ET.

Go deeper: Trump lashes out at governors, calls for National Guard to "dominate" streets

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Portland mayor responds to Trump: "Support us or stay the hell out of the way"

Portland Mayor Ted Wheeler reacted on Sunday to President Trump's tweets attacking Democratic officials in the wake of a fatal shooting Saturday night during clashes between Trump supporters and protesters, saying at a news conference, "I'd appreciate that either the president support us or stay the hell out of the way."

Why it matters: Trump has made Portland, which has seen more than 90 consecutive days of Black Lives Matter protests, a target for his claims that Democratic leadership is allowing violent rioters and antifa to overrun cities. Wheeler last week rejected Trump's offer to send federal law enforcement in the city to help quell violent protests, leading the president to unleash a barrage of attacks on Twitter over the weekend.

Biden condemns violence on all sides after deadly Portland shooting

Photo: Win McNamee/Getty Images

Democratic nominee Joe Biden issued a statement unequivocally condemning violence on all sides after a man was fatally shot Saturday night during a clash between supporters of President Trump and anti-racism protesters.

Why it matters: As Biden prepares to address civil unrest this week, he is looking to set a marker for Trump and put the burden on him to speak to all sides on an issue that is roiling America and the presidential campaign.

Updated Aug 31, 2020 - Politics & Policy

Biden to deliver remarks in Pittsburgh on Trump's America and vision for future

Democratic presidential nominee Joe Biden during the Democratic National Convention from the Chase Center on Aug. 20, 2020 in Wilmington, Delaware. Photo: Win McNamee/Getty Images

Democratic presidential nominee Joe Biden will travel to Pittsburgh, Pennsylvania, on Monday to make an address "on whether voters feel safe" in President Trump's America and offer his vision for a "better future," his campaign said in a statement.

Of note: The Biden campaign's announcement Sunday comes one day after the New York Times reported that the former vice president would be making a trip to "condemn violence, and to note that chaos has unfolded" on Trump's watch.