Trump toured Mission Control, where she spoke with the crew of the International Space Station.
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Trump also got a close-up look at the new Orion spacecraft that will take astronauts to the moon, Mars and beyond.
The president's daughter and the incumbent Texas senator were led on their tour by NASA administrator Jim Bridenstine.
A meeting with local high school students, who are working with NASA engineers to build a robot for the FIRST Robotics Competition, rounded out the trip.
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Extra security was added to protect the special visitors to the space center.
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