Partnerships and alliances in politics can be momentary or lasting. This one seems momentary, where in general differences exist, but this really rings a bell for a just cause. A bill with traction? Unlikely.

This websearch screen capture, 

search = aoc gaetz joint sponsor bill against lawmakers owning trading stock

The screen shot is unique in that almost all the returned item blurbs seem to show outlets not intent, this time, on product differentiation:

click the image to enlarge and read