From The Washington Post:

“It’s not all that unusual for Congress to obtain and publish communications (texts, emails, phone records, etc.) under their investigatory and subpoena powers,” said Casey Burgat, a resident senior fellow at the think tank R Street Institute, in an email.

Republicans are also turning up the pressure on the companies for complying with the subpoenas in the impeachment inquiry. Nunes said on Fox News that AT&T should have fought the request from the Democrats.

“They don’t just hand over this stuff willy nilly,” Baker, who now serves as the R Street Institute director of national security and cybersecurity, told me.