With Biden elected I’ll be interested in seeing if the USA rejoins the TPP agreement. It was negotiated under Obama and Biden was a supporter at the time.
Of course Congress is the tricky part. Trump pulled the USA out as he was essentially a Democrat in terms of trade protectionism - a very odd position for a Republican. Congress is split but I could see the Republican Senate passing it. The question is will enough a Democrats in the House agree to it? Likely a very divisive issue between the Liberal (maybe yes) and Progressive (no) sides.