Final Odds as Kathy Barnette Faces Mehmet Oz in Pennsylvania Primary

Celebrity heart surgeon Dr. Mehmet Oz is still the favorite to win the Pennsylvania Senate Republican primary despite a significant surge from rival Kathy Barnette.

Ahead of Tuesday's vote, the Donald Trump-endorsed Oz is the leading candidate in the polls and with bookmakers,

with former hedge fund CEO David McCormick falling behind Barnette into third place.

Trump had said Monday that he didn't believe that Barnette could win the general election against "Radical Left Democrats."

Oz's chances of winning have improved further compared to the odds provided on Thursday, May 12,

according to Betfair. The bookmaker has declared Oz the 2/9 favorite to win the GOP Senate candidacy in Pennsylvania, having been 8/11 the previous week.

Betfair Exchange spokesperson Sam Rosbottom told Newsweek that Oz's chances have "massively improved over the last few days" even with the surge from Barnette.

The latest odds now mean that Oz has a near 82 percent implied chance of victory in the primary, up from near 58 percent last week.