Elon Musk has not only declared his endorsement for Trump, he's also started thinking about his own security.Evan Vucci/AP; Marc Piasecki/Getty ImagesFormer US President Donald Trump was shot at a rally in Pennsylvania on Saturday.Elon Musk said the incident had got him rethinking his own security protocols. Musk gave a full-throated endorsement of the presumptive GOP nominee after the shooting.The shooting in Pennsylvania that left former President Donald Trump bleeding from the ear is making Elon Musk rethink his security protocols."You better beef up your security too @elonmusk," an X user called Whole Mars Catalog tweeted at Musk on Saturday night, after the shooting."Maybe it's time to build that flying metal suit of armor," Musk replied.Ian Miles Cheong, a Musk friend and common fixture on X also asked Musk to "triple" his protection, writing on X: "If they can come for Trump they will also come for you.""Dangerous times ahead," Musk wrote in response to Cheong.