 On Saturday, both Secret Service and law enforcement officials held a briefing to discuss security but refused to answer any questions about the assassination attempt on Donald Trump. Chiquino says Secret Service will continue to assess the environment and adapt security measures as needed. The RNC will kick off tomorrow with Trump confirming he'll be present to accept the official Republican nomination. Trump flew to Milwaukee this afternoon. Actress Shannon Doherty, best known for her role in Beverly Hills 90210, has died after a battle with cancer at the age of 53.