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Those sending congratulations to NASA and SpaceX included House Minority Whip Steny Hoyer (D-Md.) and Sens. Charles Schumer (D-N.Y.), Mark WarnerMark Robert WarnerHeitkamp becomes first Dem to back Pompeo for secretary of State Dems walk tightrope on Pompeo nomination Amid struggle for votes, GOP plows ahead with Cabinet picks MORE (D-Va.) Barbara MikulskiBarbara Ann MikulskiDems ponder gender politics of 2020 nominee Robert Mueller's forgotten surveillance crime spree Clinton: White House slow-walking Russia sanctions MORE (D-Md.), Ron JohnsonRonald (Ron) Harold JohnsonGOP senator: Congress needs ‘to move on’ from Russia probe GOP senator: ‘Way too early’ to talk about supporting Trump in 2020 IG report faults fired FBI official McCabe for leak to media MORE (R-Wis.), Thad CochranWilliam (Thad) Thad CochranChamber of Commerce makes play in Mississippi Senate race for Hyde-Smith Shelby approved as Appropriations panel chairman Cindy Hyde-Smith sworn in as Mississippi's latest senator MORE (R-Miss) and Marco RubioMarco Antonio RubioSenate confirms Trump’s pick to lead NASA The Hill's 12:30 Report Steps Congress can take to defend America against foreign influence operations MORE (R-Fla.).

"This is a historic milestone for space exploration and an important achievement for the commercial space industry," Rubio said in a statement. "We no longer live in a world where space is only explored by government agencies, and we should all take pride that an American company is the first to accomplish this mission."