Tuesday's primaries will shape decisive battles for Congress

Elisabeth Ford (center), 33, holds her son, Harrison, 8 months, while casting her vote at the Trucksville United Methodist Church polling station during the 2018 Pennsylvania Primary Election  in Trucksville.
Elisabeth Ford (center), 33, holds her son, Harrison, 8 months, while casting her vote at the Trucksville United Methodist Church polling station during the 2018 Pennsylvania Primary Election in Trucksville.