Sen. Blackburn Takes Aim At ‘Birth Tourism’ Bill would block foreign tycoons from obtaining U.S. citizenship through childbirth Yuichiro Kakutani July 6, 2020 9:45 AMSen. Marsha Blackburn (R., Tenn.) introduced a new bill to outlaw birth tourism, a practice popular among wealthy foreigners who obtain American citizenship for their children by giving birth on U.S. soil while on vacation.