At a White House event on prescription drug costs, Mark Cuban stood beside President Trump — despite having campaigned for Kamala Harris — and the moment produced a sharp, memorable exchange that underscored a long-running, odd-couple friendship and a shared aim on healthcare.

Mark Cuban, the billionaire entrepreneur and Dallas Mavericks minority owner, has been openly critical of Trump and even campaigned for Kamala Harris in 2024. Still, Cuban showed up at the White House to talk about lowering drug prices, bringing his Cost Plus Drugs experience into the conversation. Trump’s administration has its own Trump Rx push, and the optics of the two men together were impossible to miss. What followed was frank, a little funny, and politically pointed.

Both men have a track record of mixing business instincts with public policy ideas, and that mix was on display at the event. Cuban framed his appearance as a pragmatic move to tackle prescription costs rather than a political statement. Trump leaned into that practicality and used the occasion to land a quick line that sent cameras and reporters scrambling.

REPORTER: It’s pretty remarkable seeing you and Mark Cuban up there, he endorsed Kamala Harris back in 2024

TRUMP: Well, he made a mistake!

The exchange landed with the crowd, and the president went on to note the one real point of agreement the two men share. They’ve been friends for more than two decades, and that history showed in their onstage banter. For all the political theater, both sides wanted the same practical outcome when it came to making healthcare more affordable.

President Trump and Mark Cuban’s “love-hate” relationship was on full display at the White House Monday when the billionaire businessman joined the president in promoting cheaper prescription drugs available at Trump Rx.

Trump was asked about working with Cuban to lower prescription drug costs despite his endorsement of former Vice President Kamala Harris in 2024.

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The two men have been friends for over 20 years and Cuban, despite campaigning for Trump’s rival, said after the election it was important to work with the president, describing their relationship as one of “love-hate.”

The two men’s friendly banter and bromance was on display Monday when they were on stage together. 

You’re “looking good,” Trump told him, adding the two have “one thing” in common.

“We have the same thing — one thing — in common. We want to make people better and keep them wealthy.”

The former owner of the Dallas Mavericks was clear that he was at the White House to talk about healthcare and not politics.

Trump’s quip about Cuban “making a mistake” when he backed Harris was classic off-the-cuff politics, blunt and meant to land. But the larger takeaway was the way both men pivoted from partisan lines to a shared practical pitch on drug pricing. Cuban emphasized that his presence was about solutions, not score settling, and Trump highlighted that alignment in a way his supporters appreciated.

There’s something strategic in Cuban’s move, too: showing that entrepreneurs can work across political divides when there’s a policy to fix. For Republicans watching, the image of the president engaging with a high-profile business figure who briefly backed the other side reinforced a message about getting things done. It underlines a Roosevelt-style practical conservatism — tackle costs, cut middlemen, and let common-sense business ideas find a place in policy.

Not everyone on the left liked seeing Cuban at the event, and a few liberals were openly displeased. But politics aside, the conversation was anchored in real consumer pain points: rising drug costs and failing supply-chain efficiencies. Both men used their platforms to push different parts of the same fix — Trump with a political program, Cuban with a business model — and that mix produced headlines and, more importantly, a policy conversation.

Moments like this are noisy and often get reduced to a single soundbite or stare for cameras, but they’re also where policy gets real. Two influential figures who don’t always agree decided to show up together and talk about lowering costs for Americans. That’s the story the cameras caught, and it’s why the exchange — equal parts roast and handshake — stuck with people.