美国议员加快对特朗普遇刺事件的调查，要求更新总统候选人的安全措施。 U.S. lawmakers speed up investigations into Trump's assassination attempt, demanding updates on safety measures for presidential candidates.

美国立法者加快对特朗普遇刺事件的调查，要求解释枪手是如何接近他的，并寻求总统候选人的安全措施的最新进展，特别是在正在进行的选举过程中。 U.S. lawmakers speed up investigations into Trump's assassination attempt, demanding answers on how the shooter approached him and seeking updates on safety measures for presidential candidates, particularly in the context of the ongoing election process. 议员们在致国土安全部部长马约卡斯和联邦调查局局长雷的一封信中表达了他们的担忧。 The lawmakers addressed their concerns in a letter to Homeland Security Secretary Mayorkas and FBI Director Wray.