Yes, MARA continues to trade in lockstep with ACTG, with both drifting to new lows.
I would not worry about a congressional death blow. No matter the perception, the legislation that has been proposed will have 0 impact on how MARA runs its business. And I would say there is less than a 1% chance that we would ever in our lifetime see legislation enacted that essentially stripped away the right for patent holders to sue for infringement (be it the original inventors or companies that subsequently acquire the rights). Remember, there are large lobbying bodies on both sides of the table.
I will be the first to admit that current share price hurts. But the future remains in front of us (provided that management can continue to execute as it has done since the inception of the company).