WGBH's Mike Deehan reports that State Representative Byron Rushing, who has represented the South End and part of Roxbury since being elected in 1983, could face a challenge in the Democratic primary from Jon Santiago, a Boston Medical Center doctor.
Santiago, a Ward 4 committee member, filed to run for the Ninth Suffolk seat Monday, according to WGBH.
Jon Santiago, a Boston Medical Center emergency medicine resident and Ward 4 committee member, filed to run for the Ninth Suffolk seat Monday.