Summer Mersinger, a former commissioner at the United States Commodity Futures Trading Commission (CFTC), will step down as chief executive of the Blockchain Association and leave the industry advocacy group at the end of the year, following a significant legislative setback for one of its top congressional priorities. The leadership change comes as the group's leading legislative priority remains stalled in the Senate, handing the transition to its founding leader at a pivotal stretch for the industry's policy agenda in Washington.

On Friday, the Blockchain Association (BA) — a Washington, DC-based advocacy organization representing firms across the digital asset industry — announced in a statement on its website that Mersinger will vacate the CEO role on Oct. 16. Kristin Smith, the group's founding chief executive, will return to lead the organization as interim CEO while retaining her existing position as president of the Solana Policy Institute. Mersinger joined the association in June 2025 after departing the CFTC three years before her second term as commissioner was scheduled to end, giving her a tenure of roughly four months as CEO.

"I came here from the CFTC because I believed this industry deserved clear rules of the road and a credible, unified voice making the case for them in Washington," Mersinger said of her departure.

In its announcement, the organization credited Mersinger with helping to advance the Guiding and Establishing National Innovation for US Stablecoins (GENIUS) Act, a federal stablecoin framework signed into law in July 2025, as well as contributing to "regulatory clarity at the [Securities and Exchange Commission] and CFTC."

The association made no mention of the Digital Asset Market Clarity Act, which it had repeatedly pressed lawmakers in the Senate to support. The bill failed earlier this month to secure enough Democratic and Republican votes in a cloture motion, and many experts expect the legislation to remain in limbo until 2027 — a timeline that leaves the group's top remaining priority unresolved just as it moves to interim leadership.

The Blockchain Association did not immediately respond to questions about Mersinger's plans for 2027, leaving open where the former regulator lands next and how the group's Senate-focused advocacy proceeds under Smith's interim leadership.