The explanation from Reuters is simpler:
Special prosecutors will ask a Texas grand jury as early as this month to indict the state’s attorney general on first-degree felony charges for suspected securities laws violations, one of the prosecutors said on Thursday.
A spokesman for Attorney General Ken Paxton, a Republican who came to office earlier this year with strong Tea Party support, was not immediately available for comment.
“There is evidence that needs to be presented to the grand jury about a couple of different violations. One of which that they will have to determine is if securities fraud was present,” said attorney Kent Schaffer, appointed to investigate the suspected violations.