Transportation Secretary Pete Buttigieg. Win McNamee/Getty Images Transportation Secretary Buttigieg responded to Tucker Carlson's criticism of his parental leave. "I guess he just doesn't understand the concept of bottle feeding," Buttigieg said on MSNBC. Conservatives have tried to point to Buttigieg's leave in the debate over supply-chain issues. Transportation Secretary Pete Buttigieg responded to Fox News host Tucker Carlson's mocking statement that he was "trying to figure out how to breastfeed" while taking parental leave.During an appearance Friday on MSNBC's Deadline White House, Buttigieg, who adopted twin newborns with his husband, Chasten, spoke of the benefits of family leave and being able to spend time with the newest members of his family.In an Oct.