Jamie Dimon: No, I haven't endorsed Donald Trump

• Jamie Dimon denied Donald Trump's claim that the JPMorgan Chase CEO had endorsed him.
• Trump previously waffled on whether Dimon could have a place in his cabinet.
• Dimon, meanwhile, backed Elon Musk's idea for government efficiency under a Trump administration.

Jamie Dimon hasn't endorsed Donald Trump — despite what the former president wrote on social media.

The Republican presidential nominee posted a photo on Truth Social on Friday of Dimon with a caption above reading, "New: Jamie Dimon, the CEO of JPMorgan Chase, has endorsed Trump for President," beside a red siren emoji.

But a spokesperson for JPMorgan Chase told Business Insider, "Jamie Dimon has not endorsed a candidate."

It's unclear where the initial claim came from or what motivated Trump to post it. His campaign did not immediately respond to a request for comment from Business Insider.

While election season has geared up, Dimon has so far stayed on the sidelines as business leaders weighed in on the two main contenders.

Some, like billionaire Tesla and SpaceX CEO Elon Musk, have thrown their wealth and support behind Trump, while others, like Mark Cuban, have endorsed his Democratic opponent, Vice President Kamala Harris.

Trump has praised — and insulted — Dimon during the 2024 general election.

In an interview with Bloomberg Businessweek conducted in June and published in July, the former president said he would consider Dimon for a spot in his Cabinet if he is reelected this November.

"I have a lot of respect for Jamie Dimon," Trump told the outlet, adding that, "He is somebody that I would consider, sure," when Bloomberg suggested the possibility of offering Dimon the role of Treasury Secretary.

Then, a week after Bloomberg published its interview with Trump, the former president wrote on Truth Social that he had no idea who said he'd consider Dimon for a role in his Cabinet, adding that he'd never thought of or discussed Dimon for the Treasury Secretary role.

Trump hasn't always been keen on Dimon; the former president once called him a "highly overrated globalist" while accusing Dimon of backing his primary opponent, Nikki Haley.

Meanwhile, Dimon defended Trump's supporters earlier this year and said the former president was "kind of right" about some of his policy positions.

"He's kind of right about NATO. Kind of right about immigration," Dimon said during an interview with CNBC's "Squawk Box" in January. "He grew the economy quite well. Tax reform worked. He was right about some of China."

Last week, Dimon supported a governmental oversight idea first pitched by Musk during a livestream with Trump on X.

Dimon said in an interview with CNBC-TV18 that he liked the idea of Trump forming a new government efficiency commission if he were to win the White House again in November.

"I think governments have to become more efficient, more competent," he said. "And look at, when they take money, what do they get for it. I actually think it's a very good idea."

And in that interview, Dimon stressed he wasn't making an endorsement "at this time."

"I spend more of my time on policy," he said. "What's the policy we need that can really help both the world with foreign policy and domestically?"