Californians are voting on a ballot initiative, "Proposition 50," to determine if the state will adopt a new congressional map that redraws five districts to be more Democratic-leaning, potentially allowing Democrats to flip them in the midterms.

Here’s what to know about voting in today’s election. The Justice Department plans to monitor polling sites in five counties in California, a move that will likely heighten tensions on Election Day and in the days afterward during the vote-counting process.

The closely watched election could influence which political party controls the House of Representatives after next year's midterms.

Polls open 7 a.m.–8 p.m. Nov. 4 Learn deadlines for mail ballots same-day registration and where to drop off your vote

According to a poll released last Thursday from the UC Berkeley Institute of Governmental Studies, co-sponsored by the LA Times, six out of 10 likely voters support Prop. 50, the Nov. 4 statewide ballot measure that would redraw California’s congressional districts and give Democrats a boost toward regaining control of the House.

Eyewitness News Anchor Marc Brown sat down with political experts to discuss the November special election and the future of Prop 50.

Meanwhile, in the same 20-year timeframe, Democratic registration in the county grew by nearly 15,000 voters overall, from 54,770 in 2005 to a low point of 49,692 in 2014 before surging and similarly leveling out at 69,572 today.

California farmers and the state Farm Bureau are speaking out against Prop 50, warning it could dilute rural influence as Democrats seek to redraw congressional lines.