Tonight on All In. Say goodbye to your smile and say hello to polio. You know, I would laugh if it weren't so scary.

Bombshell reporting on the Trump transition. The lawyer helping RFK Jr. pick federal health officials for the incoming Trump administration has petitioned the government to revoke its approval of the polio vaccine.

Tonight, new alarm over the man Donald Trump picked to protect American health,

and the growing concern over the broad MAGA push for deregulation.

Deregulation actually will unleash a new wave of prosperity that is much greater than people realize.

And as the Fox News cabinet keeps filling out,

why is the future president sending his future daughter-in-law to another continent?

The best is yet to come!

And all-in starts right now.

Good evening from New York. I'm Chris Hayes. One thing that the incoming Trump

administration and its billionaire backers are very excited about is deregulation. Because

no one likes regulations, right? All those business-killing laws and

annoying obstacles. Amazon founder and Washington Post owner and one million dollar donor to the

Trump inauguration, Jeff Bezos, is very optimistic. If we're talking about Trump, I think it's

very interesting. I'm actually very optimistic this time around that we're going to see.

I'm very hopeful about this.

He seems to have a lot of energy around reducing regulation.

And my point of view, if I can help him do that, I'm going to help him.

Because we do have too much regulation in this country.

Too much regulation. So where do we start? What do you think is a possible primary target in this war on

regulations? How about the money in your bank account? According to the Wall Street Journal,

in recent interviews with potential nominees to lead bank regulatory agencies. President-elect Donald

...