Jonathan Grant @Brambleman Going back at least to 2012, a major error by the DeKalb County Board of Elections has put nearly 700 voters who should be in Democratic Rep. Scott Holcomb’s House District 81 in (up until recently) safe Republican House District 79. Bear in mind, Doraville North is a reliably blue precinct, giving Democratic candidates hefty majorities. Jon Ossoff took Doraville North last year with 75 percent of the vote. These voters would have increased Holcomb’s victory margin in 2016 by about 200, and they are even more crucial in a mid-term election, when turnout is typically lower. Here’s what happened: A portion of Doraville North extends east past Buford Highway around Oakcliff Road near the Gwinnett County line; Buford Highway…