If Disney doesn't keep illegally extending the copyright dates, continuing to ruin the way copyrights are supposed to actually work, I will legitimately be surprised.
I'm pretty sure that Congress passing legislation concerning interstate trade is expressly permitted in the Constitution. You could make an argument for ethics, practicality, or economics. I don't think you can make a legality argument here.
They might be doing that... but not possible? Come on dude. That's just a failure of imagination. There are plenty of legal ways to corrupt the government. Lobbying is the most common one, and very legal. Insisting that they're committing crimes without any evidence of it is just silly.