All coverage
Oz, McCormick unleash army of lawyers in Pa. Senate race
By Holly Otterbein
Trump taints Pennsylvania GOP Senate primary with fresh fraud lies
By Stephen Collinson
Pennsylvania primary Senate race: High-stakes for GOP’s Oz, Barnette, McCormick
By Henry J. Gomez & Alex Seitz-Wald
Trump works overtime to push Dr. Oz over the finish line
By Natalie Allison & Holly Otterbein