These charges are for an investigation that began over 12 yrs ago. The charges are through the years of 2014. The investigation was stopped for awhile through 2018. Then it resumed slowly, until he was out of office, when it went full steam ahead.
So yes, now they can go back and make sure he pays his share.
@Bliss can they at least make sure he doesn’t get by with cheating on his taxes anymore?