Jamie Dimon is not interested in playing nice with crypto. The JPMorgan Chase CEO went after both the Clarity Act and Coinbase CEO Brian Armstrong during a Fox Business interview on May 29, accusing Armstrong of pouring “hundreds of millions” into lobbying efforts to get the digital asset bill across the finish line.

The broadside lands at a particularly sensitive moment. The Senate Banking Committee advanced the Clarity Act with a 15-9 bipartisan vote on May 14, and the White House has set an ambitious July 4 target for full congressional passage.

The feud that started in Davos

This isn’t the first time Dimon and Armstrong have clashed. The two had a confrontation at Davos in January 2026, where Dimon accused Armstrong of being “full of sh–” regarding his criticisms of bank lobbying efforts.

Dimon’s core complaint centers on what he sees as inadequate safeguards in the Clarity Act. He specifically pointed to weaknesses in anti-money laundering and Bank Secrecy Act compliance provisions, particularly around stablecoin rewards. He made clear that JPMorgan, the largest bank in the US by assets, will actively oppose the legislation in its current form.

Coinbase’s complicated relationship with the bill

Coinbase actually withdrew its support for the bill back in January 2026, reportedly over restrictions on yield-bearing products. By May, enough changes had been made to the bill that Coinbase signaled renewed backing.

Dimon wants crypto squeezed through the same compliance framework that governs traditional banking. Armstrong wants a regulatory structure purpose-built for digital assets. The Clarity Act attempts to split the difference, which might explain why neither side seems fully satisfied.

What this means for investors

The 15-9 committee vote shows genuine bipartisan momentum for the Clarity Act. For Coinbase specifically, the exchange’s shares previously rallied on news of the Clarity Act’s legislative progress. But heightened opposition from traditional finance, led by the CEO of America’s largest bank, creates headwinds. If the bill gets watered down to satisfy banking industry concerns, particularly around stablecoin yields and compliance requirements, the final version might look very different from what crypto firms are currently endorsing.