Joe Biden just announced his running mate choice: Sen. Kamala Harris of California. That means Harris, if she can govern well, could be the leader of both the Democratic Party and the country through 2030. If she can't, she might well be the last democratically-elected vice president in American history.
Biden is the heavy favorite against Trump this year. Given his age and his track record of working closely with President Obama when he was vice president, Harris will presumably play a significant role in major governing decisions. It's unpopular for the media to talk about, but there's a decent chance she would need to step in before Biden's term is up. What's more, there is a reasonable chance that Biden would choose not to run for re-election in 2024. If so, Harris would be the overwhelming favorite to run in his place.
The stakes could hardly be higher. Donald Trump is blatantly trying to steal the 2020 election, and the next Republican candidate will very likely try the same trick. A Biden administration would have four years, and perhaps another four or eight under a Harris administration, to address the pandemic, rebuild the shattered economy and federal government, root out Trump's gangrenous corruption, and fortify America's democratic institutions. If Biden and Harris instead muddle through letting everything fester, as happened under the Obama administration, the next would-be authoritarian probably won't be as incompetent as Trump. Let's hope they seize the moment.