In his speech to the Republican National Convention of Wednesday, Pence brought up the violence that erupted in Kenosha, Wisconsin, following the shooting by police of Jacob Blake.
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A white 17-year-old police admirer was arrested earlier Wednesday on suspicion of first-degree intentional homicide after two people were shot to death during a third straight night of protests in Kenosha over Blake's shooting.
Blake was shot in the back seven times on Sunday as he leaned into his SUV, three of his children seated inside. His family says he is paralyzed from the waist down.
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Pence, accepting the GOP nomination for vice president, said, "The violence must stop, whether in Minneapolis, Portland or Kenosha." He added, "We will have law and order on the streets of this country for every American of every race and creed and color."
During his keynote address, the vice president also addressed Hurricane Laura and said people in the path of the storm should heed warnings about the strength of the storm and he pledged the Trump administration's help.
He said, "Stay safe and know that we'll be with you every step of the way."
Pence spoke at Fort McHenry in Baltimore, Maryland, as he "humbly" accepted the GOP's nomination for vice president at the Republican National Convention. It was not clear until just before he took the stage that he would address the looming Category 4 hurricane.
The strengthening storm menaced Texas and Louisiana along the Gulf Coast, raising fears of a 20-foot (6-meter) storm surge that forecasters said would be "unsurvivable." Authorities implored coastal residents of Texas and Louisiana to evacuate, but not everyone did before winds began buffeting trees back and forth.
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President Donald Trump made a surprise appearance following Pence's speech.
The president, first lady, Pence and Pence's wife stood on stage with their hands over their hearts as country music star Trace Adkins performed "The Star-Spangled Banner."
Trump didn't make any comments at the podium, but after the national anthem, he and the first lady greeted people in the audience, chatting with supporters while standing a few feet away.