Tight Pennsylvania GOP Senate Race; Mastriano Wins Gov Nod

Harrisburg, Pa. (AP) -- Donald Trump's preferred candidate in Pennsylvania's Senate Republican primary was essentially tied with a more traditional rival, while his pick for governor notched a commanding victory Tuesday as the former president worked to expand his hold on the GOP.

Doug Mastriano was already surging in the governor's race when Trump issued an endorsement over the weekend supporting the far-right state senator. But Mehmet Oz, the celebrity heart surgeon endorsed by Trump, was locked with former hedge fund manager David McCormick in a race that was too early to call Wednesday morning.