The vice presidency may be the “most insignificant office that ever the invention of man contrived,” as the first Vice President John Adams described it or“not worth a bucket of warm spit” in the immortal words of John Nance Garner, FDR’s number two. But the vice presidency was the launching pad for two recent presidents: George H.W. Bush and Joe Biden. Former Vice President Mike Pence is giving a 2024 run “prayerful consideration,” while current Vice President Kamala Harris likely has presidential aspirations of her own. If Democrats had floundered in the midterms, there would have been lots of pressure...