Leading AI executives signed a voluntary safety accord at the White House on Tuesday. The accord asks companies to monitor their own models, verify those controls and use outside auditors, with an independent board committee supervising the verification team. President Donald Trump called the pact morally binding when asked about enforcement. SpaceXAI CEO Elon Musk compared the oversight structure to people grading each other's homework. CNBC reported that House Speaker Mike Johnson's comments make congressional action on AI oversight much less likely.