In my opinion, it would make the US look like a foolish country for electing him, and the rest of the world would be laughing at the US. But that is just my opinion,
On this side of the Pacific he's treated as a joke, much as Sarah Palin was. It's hard to believe the GOP can't find a more suitable candidate. I think the US under President Trump would become the butt of the world's cartoonists.
He was working on two important drafts in July 1862.
The Emancipation Proclamation
Northern Draft of 1862