[paxys]

The responsibility of archiving presidential records should really not fall on a private company. If I had to put money on whether Twitter will be around a couple of decades from now, it'll be an easy "no".

[semi-extrinsic]

I believe the Library of Congress archives all historically relevant tweets. Up until 2017-ish they archived every single one.

[DennisP]

I'd be very surprised if all Trump's tweets weren't scraped and saved in official archives.