https://www.reuters.com/article/us-tesla-musk-sec/u-s-sec-wants-to-respond-to-elon-musks-defense-of-tesla-tweet-idUSKBN1QT2N1 >The top U.S. securities regulator on Tuesday sought permission from a judge to respond to Tesla Inc Chief Executive Elon Musk's arguments that his Twitter post about the electric vehicle maker’s production volume did not violate his fraud settlement with the government.