 Maryland U.S. Senators Ben Cardin and Chris Van Hollen were continuing their support for full federal coverage to replace the Key Bridge in Baltimore. Wednesday, they pressed the leadership of the Senate Environment and Public Works Committee to move forward with legislation to cover 100 percent of the rebuild. Meanwhile, in an exclusive interview with NBC News, the construction worker pulled from the Patapsco after the bridge collapsed, says he wasn't sure if he would survive and held on to bridge debris because he couldn't swim.