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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 WarnerWray defends FBI after 'sobering' watchdog report Top Dems: IG report shows Comey's actions helped Trump win election Dem senator: Trump at G-7 made me ‘embarrassed for our country’ 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 JohnsonSenate probes FBI's heavy-handed use of redactions to obstruct congressional investigators Hillicon Valley: DHS gets new cyber chief | White House warns lawmakers not to block ZTE deal | White nationalists find home on Google Plus | Comcast outbids Disney for Fox | Anticipation builds for report on FBI Clinton probe Graham jokes about Corker: GOP would have to be organized to be a cult MORE (R-Wis.), Thad CochranWilliam (Thad) Thad CochranTodd Young in talks about chairing Senate GOP campaign arm US farming cannot afford to continue to fall behind Mississippi Democrat drops Senate bid MORE (R-Miss) and Marco RubioMarco Antonio RubioDem scores upset over Republican in Florida county commissioner race GOP senators introduce bill to prevent family separations at border McCain, Coons: Trump should withdraw controversial refugee nominee 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."