HARRISBURG – Looking at area contested races for PA Senate. In the 9th District, Democrat John Kane leads Brett Burman to run against Republican incumbent Sen. Tom Killion in November. In District 13, Democrats Janet Diaz is ahead of Craig Lehman in a battle to win the nomination to run against incumbent Republican Sen. Scott Martin this fall. In the 15th District, Democrat George Scott leads Alvin Taylor in the race to face Republican incumbent Sen. John DiSanto in the fall. In the 31st District, Democrat Shanna Danielson leads Rick Coplen and John Bosha to run against incumbent Republican Sen. Mike Regan in the fall.