SPRINGFIELD — Republican Rep. Margo McDermed of Mokena, a former corporate attorney, announced last week she will not seek re-election to the House in 2020.McDermed will continue to serve through her term — which ends January 2021 — but then said plans to focus on her family and other pursuits. “It has been an honor to serve and get to know the residents of the 37th District,” McDermed said. “I will continue to call it home and be its staunch advocate, but the time has …