Brian Quintenz, policy director at a16z, is reportedly no longer a candidate for the chairmanship of the U.S. Commodity Futures Trading Commission (CFTC). According to sources cited by Politico, Mike Selig, chief legal counsel and senior advisor to the SEC's cryptocurrency working group, is now the leading candidate for the position. This development comes as the CFTC seeks new leadership amid evolving regulatory challenges in the cryptocurrency sector.