The top official at the IRS is resigning after news of a deal between the agency and immigration authorities to share sensitive personal data became public on Monday.

William Brangham joins us now with more. William.

That's right, Omna. For decades, the IRS encouraged undocumented immigrants to file their taxes,

with the assurance that their data would be protected. But now, this unprecedented agreement

would give authorities who want to deport migrants access to personal records that include

job information, home addresses, and more. It comes less than a week before tax day,

and after a tumultuous few months,

that also saw mass layoffs across the agency.

So to help understand what this all could mean,

we are joined now by Natasha Serran.

She's the president of the Budget Lab at Yale University.

Natasha, thank you so much for being here.

So immigration officials will now have access to this personal data of migrants who are living in this country and filing their taxes.

And when news of this broke, the head of the IRS, Melanie Krause, quit.

How unusual is this agreement and this quitting?

So to put the sort of quitting in some context, we are now at a state where the IRS has gone through three commissioners in one filing season. I, in modern

history, there has been nothing like it, or nothing even close to it, frankly. And the fact that

Melanie Krause chose to resign is really pretty indicative of things being quite awry at the IRS.

Because Melanie, in terms of public reporting, at least is what we've seen,

has been someone who, from the agency's perspective, has been incredibly keen to work with the administration,

to work with Doge on their efforts with respect to workforce

reductions and data sharing agreements. And so for her to be of the view that at this moment,

...