Zyobot
Just a time-traveling robot stranded on Earth.
I made my prediction based on the 1952 or even 1972 electorate. Based on the current electorate, McGovern should perform much better, especially due to the much higher minority percentage among the US population nowadays. I would expect McGovern to get maybe 150-200 electoral votes with the present-day electorate?
Not to mention how there's a larger "democratic-socialist" faction in the Democratic Party, too.
Moreover, both candidates would have to revise and repackage their platforms for a twenty-first century electorate, as well as let the "already-settled" issues they argued passionately over in their own times go and move on. Speaking of which, wasn't there something about Taft opposing the recognition of Alaska and Hawaii as states? If so, I assume he'd swap that out for opposing Puerto Rican statehood.