Yeah, I think we’ll get screwed on a trade deal with the US regardless of who the President is.I don't think it matters much who the president is in terms of a trade deal with the USA. When one is done it will be pretty much to their advantage anyway. They have lower standards, lower costs and greater economies of scale than the UK and are unlikely to forego those advantages.
Presumably Johnson’s bluff re: a no-deal Brexit will be weakened by the election result though. Biden’s made his thoughts on the Ireland situation pretty clear.