US Secret Service officials encouraged Donald Trump’s campaign to stop scheduling large outdoor rallies and other outdoor events with big crowds after the assassination attempt on the former president in Butler, Pennsylvania, according to people familiar with the matter, reports The Washington Post. In the aftermath of the shooting, agents from the Secret Service communicated their concerns about large outdoor rallies going forward to Trump campaign advisers, three people familiar with the matter said. For upcoming events, Trump’s team is scouting indoor venues, such as basketball arenas and other large spaces where thousands of people can fit, people familiar with the request said. The campaign is not currently planning any large outdoor events, a person close to Trump said.