Democrats are hopeful about possibly retaking the House of Representatives next month, but to do that they are going to have to overcome an inherent disadvantage in many states due to gerrymandering.
Every 10 years, the states redraw the lines of their congressional districts to reflect population changes in the previous decade. In most states, the party in power controls how the lines are drawn and after a Republican wave election in 2010, the GOP drew some very favorable and, in some cases, very odd-looking maps.
Those maps remain a major hurdle for Democrats in 2018, a storm surge wall against a potential blue wave, and looking previous election data you can see their impact. CONT.
Dante Chinni & Sally Bronston, NBC News