Sarah Palin's teenage daughter pregnant Posted September 1, 2008 1:18 PM Bristol Palin, 17, holds her brother Trig during the campaign rally where Republican presidential candidate Sen. John McCain introduced Bristol and Trig's mom, Alaska Gov. Sarah Palin, as his vice presidential running mate in Dayton, Ohio, Friday, Aug. 29, 2008. (AP Photo/Stephan Savoia) by Jason George ANCHORAGE, Alaska--The presidential campaign of Sen. John McCain announced Monday that Alaska Gov. Sarah Palin's teenage daughter is pregnant. In a statement, Palin and husband Todd said, "Our beautiful daughter Bristol came to us with news that as parents we knew would make...