What exactly does a U.S. vice-president do? It would have shocked the country's founders

Someone once refused the VP job, often derided as soul-crushing and devoid of purpose. But the role has changed and grown, much like the presidency itself. Kamala Harris was offered the job by Joe Biden after a lengthy vetting process and months of frenzied media speculation. https://www.cbc.ca/news/world/u-s-vice-president-history-1.5685187?cmp=rss #news/world