CAPE CANAVERAL, Florida President Donald Trump congratulated NASA and SpaceX following the successful launch of their rocket on Saturday afternoon. Watch the historic SpaceX rocket launch on KSAT.com Saturday afternoonIts incredible, the technology, the power. President Trump spoke to SpaceX CEO Elon Musk after the launch. He's one of our great brains, we like great brains, and Elon's done a fantastic job," Trump said. Vice President Mike Pence and Second Lady Karen Pence were also in attendance.