Mike Mount is doing them weekly since at least July 25th and as of Oct 22nd, they can be seen at https://www.arlnow.com/tag/cartoon/
"Each week we've been bringing ARLnow Press Club members a new editorial cartoon by Arlington resident Mike Mount.
Starting this week we're going to start publishing the toons here on a regular basis, after hearing from members that they prefer that Press Club content be seen by the entire ARLnow community.
Members will still get an early look at the cartoons, much like they get the Morning Notes four hours early each day, as well as a a preview of the stories we're planning to cover later in the day."