All legal challenges to the election were over on Dec 11. The last of the last ditch, hail Mary efforts was the Texas case, which was rejected by SCOTUS on Dec

All legal challenges to the election were over on Dec 11. The last of the last ditch, hail Mary efforts was the Texas case, which was rejected by SCOTUS on Dec 11. With that rejection and the certification from all 50 states, that was the key day that the winds changed definitively. Instead of banning him on that day, Twitter banned him on Jan 8, after he had used Twitter to organize a violent coup attempt on Jan 6. I think Occam's razor tells us we should accept that Twitter banned Trump for the obvious and proximal cause, rather than some hypothetical effort to curry political favor that predates the inauguration of the new administration, but postdates the new administration's certainty.