https://www.reuters.com/article/us-tesla-musk-sec-tweets-factbox/factbox-elon-musk-unabridged-on-twitter-idUSKCN1RG142 >Tesla Inc Chief Elon Musk is a prolific tweeter, and on Thursday, a judge will decide whether a Feb. 19 tweet Musk sent violated a 2018 fraud settlement with the U.S. Securities and Exchange Commission.