Donald Trump Jr. Teams Up With Mark Cuban To Dunk On Elizabeth Warren

Donald Trump Jr. teamed up with anti-Trump businessman Mark Cuban to dunk on leftist Senator Elizabeth Warren for doing “nothing” to combat what they say are the key drivers of out-of-control health care prices. 

Trump Jr. signaled his support for Cuban after the “Shark Tank” host criticized Warren for ignoring the role of pharmacy benefit managers, known as PBMs, in health care pricing. PBMs are the middlemen between drug manufacturers, insurance companies, pharmacies — and, by extension, patients — and have been criticized by the Federal Trade Commission, among others, for inflating drug prices.

On Wednesday, Warren wrote on X saying that the tax system was “rigged” because large pharmaceutical companies like Johnson & Johnson charge the “highest drug prices in the WORLD while often paying ZERO dollars in federal taxes themselves.”

In response, Cuban attacked Warren for not looking at the role of PBMs.

“No. It’s because  PBMs corrupt healthcare. Big Pharma wishes they could set their own pricing. They don’t.  PBMs control formularies and manipulate prices,  in exchange for providing pharma  access to patients. It’s how they  maximize rebate revenue,” Cuban posted. “In fact, 3 PBMs NEGOTIATE MORE THAN 90% OF REBATES  for commercial insurance plans.That’s your area of expertise,  and you have done nothing.”

Trump Jr. reacted by saying he completely agreed with Cuban on this issue. Cuban is known for his vehement opposition to President Donald Trump and was even floated as potential VP pick for Kamala Harris.

“Didn’t think I’d be RTing Mark for a while, but he’s 100% right on this issue,” he posted on X on Thursday. 

Didn’t think I’d be RTing Mark for a while, but he’s 100% right on this issue. https://t.co/ofraK5IFQk

— Donald Trump Jr. (@DonaldJTrumpJr) June 19, 2025

President Donald Trump and Cuban have traded blows for years, including over the course of the 2024 campaign, when Cuban campaigned for Harris.

“Mark Cuban is a Loser. Wouldn’t take his phone calls anymore while at the White House, and he went rogue. A weak and pathetic ‘bully,’ he’s got nothing going. Really low clubhead speed, a total non-athlete!” Trump posted on Truth Social in October 2024.

PBMs have faced increasing scrutiny from both federal regulators and lawmakers. 

Last year, the FTC released a damning report saying that smaller independent pharmacies suffer because of PBMs restrictions, while large corporate pharmacies like CVS benefit. 

“PBMs hold substantial influence over independent pharmacies by imposing unfair, arbitrary, and harmful contractual terms that can impact independent pharmacies’ ability to stay in business and serve their communities,” the FTC found. 

In Arkansas, Republican Governor Sarah Huckabee Sanders signed a law preventing PBMs from holding permits for prescription drug sales in the state. After the law was signed, CVS, which owns pharmacy benefits manager, Caremark Rx, said that it may close all of its pharmacies in Arkansas if it retains its current business model. 

Trump has also weighed in on the issue, signing an executive order targeting PBMs. The order encourages direct consumer purchases, cutting out PBMs, and mandates more pricing transparency.