[Videos below.] President Donald Trump and billionaire entrepreneur Mark Cuban appeared together at the White House on Monday to promote lower-priced prescription medications through Trump Rx, showcasing the pair’s longtime “love-hate” relationship as they joined forces on healthcare costs.

The event focused on expanding access to affordable generic medications, despite Cuban having supported Vice President Kamala Harris during the 2024 presidential race.

Asked about partnering with Cuban after the businessman backed his political opponent, Trump responded jokingly.

“Well, he made a mistake,” Trump quipped. “It was a big mistake.”

Cuban laughed at the comment and later brushed it aside while speaking with reporters.

“He was playing,” he told reporters later of the president’s remark. “I’m not going to go there; it doesn’t matter.”

The two businessmen have known each other for more than two decades, and Cuban has previously described their dynamic as a “love-hate” relationship. Despite supporting Trump’s rival during the campaign, Cuban said after the election that cooperation with the president remained important.

That familiarity and friendly back-and-forth was visible throughout Monday’s appearance as the two shared the stage during the White House event.

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.”

Cuban, the former owner of the Dallas Mavericks, stressed that his appearance at the White House was centered entirely on healthcare issues rather than politics.

“My politics don’t matter to this at all,” he told reporters after the event. He brushed off his previous criticism of Trump as “last season.”

Cuban attended the event as founder of Cost Plus Drugs, the online pharmaceutical company he launched to lower prescription medication prices. During the announcement, Trump revealed that 600 additional generic medications will now be offered through Trump Rx.

According to the administration, Amazon Pharmacy and GoodRx will also participate alongside Cost Plus Drugs in offering medications through the platform.

“By incorporating this massive catalog of low-cost generics at TrumpRx.gov consumers will now have one source to ensure that they’re getting the lowest possible cost on their prescription, so they have a real option now,” Trump said.

Cuban emphasized that lowering healthcare costs is an issue that crosses party lines and affects Americans regardless of political affiliation.

“The goal is to reduce the cost of healthcare, and we’re 100% aligned,” he said of his work with Trump.

“My politics don’t matter to this at all,” he said, refusing to be drawn into political games.

Cuban also made clear that healthcare reform has become one of his main personal priorities.

“I’ll align with anyone,” he said. “If you’re going to make healthcare cheaper, you’re my new best friend.”

Cuban launched Cost Plus Drugs in 2022 with a business model aimed at bypassing traditional insurance systems by selling medications at cost while adding a 15% markup along with pharmacy labor and shipping fees. The company also publicly discloses what it pays drug manufacturers in an effort to increase pricing transparency.

He said the mission behind the company is to reduce healthcare expenses for ordinary Americans as medical costs continue rising faster than inflation and remain one of the largest financial burdens facing households across the country.

Cuban, who previously entertained the possibility of seeking political office himself, also dismissed any idea of mounting a presidential campaign when reporters asked him outside the West Wing.

“….No,” he said, dripping in sweat on the 92-degree day. “Too hot.”