Darlene Superville Doug Emhoff, husband of Vice President Kamala Harris, applauds as first lady Jill Biden waves as President Joe Biden addresses a joint session of Congress, Wednesday, April 28, 2021, in the House Chamber at the U.S. Capitol in Washington. (Melina Mara/The Washington Post via AP, Pool) April 28, 2021 - 9:25 PM WASHINGTON - Doug Emhoff, the husband of Vice-President Kamala Harris, has probably toured more COVID-19 vaccination centres than he ever imagined. If he ever imagined that at all. His drop-ins at places where people are rolling up their sle...