By Alejandra Jaramillo and Jackie Wattles, CNN

(CNN) — The White House said Saturday it will announce a replacement candidate to serve as President Donald Trump ’s pick to lead NASA, indicating it will withdraw the nomination of tech billionaire Jared Isaacman.

“The Administrator of NASA will help lead humanity into space and execute President Trump’s bold mission of planting the American flag on the planet Mars,” White House assistant press secretary Liz Huston said. “It’s essential that the next leader of NASA is in complete alignment with President Trump’s America First agenda and a replacement will be announced directly by President Trump soon.”

The move comes just days before the Senate was expected to vote on Isaacman’s nomination to lead NASA.

Isaacman, who has twice traveled

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