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  John McCain (@SenJohnMcCain) | Twitter

  https://twitter.com/SenJohnMcCain

  Die neuesten Tweets von John McCain (@SenJohnMcCain). Memorial account for U.S. Senator John McCain, 1936-2018. To support the causes to which Senator McCain dedicated his life & service, follow @McCainInstitute. Phoenix, AZ / Washington, DC

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  Mark Polansky (@Astro_127) | Twitter

  http://twitter.com/Astro_127

  Die neuesten Tweets von Mark Polansky (@Astro_127). Former Astronaut--3 Shuttle Missions (CDR STS-127 and STS-116, PLT STS-98)--Aerospace Executive supporting NASA and Commercial Space--Motivational Speaker--DAD!. Houston

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