It's not showing up for me anymore, and these systems are almost fully automated so it's not a question of manually purging the cache when you spot a mistake, and Google will have multiple caches at key internet nodes all over the world to give quick response times (ever wondered how Google can apparently search the entire internet for your obscure query in a few ms?) which will all be updated at different times depending on usage.

Google (and hence google home, etc) gets nearly all of its 'facts' from Wikipedia (and this is almost explicit by the link to the Wiki page that's displayed at the end of the text), it's not Google answering, it's Google blindly repeating what Wikipedia said the last time the cache was updated.

If you want to actually do some research, find the person that first reported him showing up as president and you can almost guarantee they, or someone they know, editied the Wiki page.

It's not showing up for me anymore, and these systems are almost fully automated so it's not a question of manually purging the cache when you spot a mistake, and Google will have multiple caches at key internet nodes all over the world to give quick response times (ever wondered how Google can apparently search the entire internet for your obscure query in a few ms?) which will all be updated at different times depending on usage.

Google (and hence google home, etc) gets nearly all of its 'facts' from Wikipedia (and this is almost explicit by the link to the Wiki page that's displayed at the end of the text), it's not Google answering, it's Google blindly repeating what Wikipedia said the last time the cache was updated.