The Securities and Exchange Commission (SEC) is still investigating Sen. Richard Burr (R-N.C.) for a stock sell-off he completed around the start of the COVID-19 pandemic and wants to speak to Burr’s brother-in-law. Burr claimed in January that he was told the investigation ended last year. However, an SEC lawyer in a recent court filing said the commission is probing whether Burr “sold stocks on the basis of material nonpublic information” on Feb. 13, 2020. Burr may have violated federal securities laws, including the STOCK Act, a 2012 law that bars members of Congress from using nonpublic information derived from their positions for their personal benefit. Burr’s brother-in-law Gerald Fauth and his wife, Mary Fauth, are also under investigation for selling securities on the same day. Authorities believe they may have made the sales based on nonpublic information from the senator. According to the probe, Burr and his wife communicated …