the rationale for it is laid out in a few paragraphs in the federalist papers number 68 https://en.wikipedia.org/wiki/Federalist_No._68 https://en.wikipedia.or

the rationale for it is laid out in a few paragraphs in the federalist papers number 68 https://en.wikipedia.org/wiki/Federalist_No._68 https://en.wikipedia.org/wiki/Federalist_No._68 basically they wanted smart people amenable to debate and not be corrupted by a foreign nation to pick a president that doesn't have the nation's best interest at heart. or a vile person. considering they do not do that anymore and vote based on popular vote per state it's a vestigial tail of our democracy. also, considering they were supposed to not cap the number of house of representative members and the delegates were based on this number also means that it's corrupted even more so than it was.