If the U.S. were to rewrite all of its laws tomorrow, what are the things that Democrats and Republicans would agree on?

The National Constitution Center did a project where they had three teams (progressive, conservative, and libertarian) rewrite their dream constitution. There was a surprising amount of overlap. There was a fourth team (something like Team Liberal?) that merged with the progressives. They also had great discussions and eventually came up with amendments to the current Constitution that had support from all three teams.

There's podcasts about it (We The People podcast) and the documents, but the main site's here: https://constitutioncenter.org/news-debate/special-projects/constitution-drafting-project