Coinbase’s CEO says the crypto exchange is no longer just a trading venue — it’s building a fintech “super app” that can replace legacy banks. “We do want to become a super app and provide all types of financial services,” Brian Armstrong told Fox Business. “We want to become people’s primary financial account.” Armstrong also hit back against the banking lobby for “throwing a wrench into things” by responding to the challenge from crypto companies by warning that a new US stablecoin law, the Genius Act, ...