After assassination attempt, Trump and Biden seek calm, unity

Republican presidential candidate and former U.S. President Donald Trump is assisted by the Secret Service after gunfire rang out during a campaign rally at the Butler Farm Show in Butler, Pennsylvania, U.S., July 13, 2024. REUTERS/Brendan McDermid

MILWAUKEE (Reuters) - Donald Trump arrived on Sunday in Milwaukee, where he will be formally nominated as the Republican presidential candidate later this week after surviving an assassination attempt that has aggravated an already bitter U.S. political divide.

President Joe Biden, a Democrat, ordered a review of how a 20-year-old man with an AR-15-style rifle got close enough to shoot at Trump from a rooftop on Saturday. Trump, as a former president, has lifetime protection by the U.S. Secret Service.