Showdown In Pennsylvania's 18th Seen As Bellwether For Midterm Elections

Voters go to the polls Tuesday in Pennsylvania's 18th Congressional District. Conservative Republican state lawmaker Rick Saccone is being challenged by Democrat Conor Lamb — a 33-year-old Marine vet who leans to the right — in a district that's a mix of wealthy suburbs, industrial towns, rural communities and is about 90 percent white.

An-Li Herring (@anliherring) from WESA in Pittsburgh has been out talking to voters during the course of the election.