Americans welcomed more pets into their homes throughout the Covid-19 pandemic.

The firm is alsobuying uppet insurance companies.

Now, progressive Sen.Elizabeth Warren(D-Mass.)

Senator Elizabeth Warren (D-MA) speaks to media at the U.S. Capitol, in Washington, D.C., on Thursday, June 13, 2024. (Graeme Sloan/Sipa USA)(Sipa via AP Images)

Sen. Elizabeth Warren (D-Mass.) speaks to media at the U.S. Capitol, in Washington, D.C., on June 13, 2024.Graeme Sloan/Sipa USA/AP

is seeking to apply pressure on JAB.

The letter was shared exclusively withRolling Stone.

This vertical integration may empower JAB to preference its own insurance brands at its clinics.

The firm also holds a significantstakein the beverage conglomerate Keurig Dr. Pepper.