WASHINGTON — President Donald Trump on Monday condemned the largest mass shooting in modern U.S. history as an "act of pure evil" and said the nation was "joined together in sadness, shock and grief" after more than 50 people were gunned down in Las Vegas.Speaking slowly and somberly from the White House, Trump declared that the nation would rally together in the face of the latest act of senseless violence."Our unity cannot be shattered by evil, our bonds cannot [...]