Uniformed police are generally not allowed around polling places, and the Pentagon doesn't want to get involved. Still, they're getting ready if things get out of control. Vladimir Vladimirov/Getty Images hide caption
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Defense Secretary Mark Esper, here at a Pentagon press conference in March, says he does not support invoking the 1807 Insurrection Act to deal with the current unrest in the nation. Olivier Douliery/AFP via Getty Images hide caption
Authorities clear Lafayette Park in Washington, D.C., on Monday, while across the street at the White House, President Trump said he would send the military to U.S. cities if local officials don't end unrest. Alex Brandon/AP hide caption