Conservative CNN contributor Scott Jennings was left scrambling for explanations when confronted with his changing beliefs about whether U.S. secretaries of transportation can take time off from work. At issue are 1) The two months of paternity leave that former Transportation Secretary Pete Buttigieg took in 2021 when his newborn infants were in the ICU, and 2) Current Transportation Secretary Sean Duffy’s seven-month-long road trip for a reali…