Dr. Mehmet Oz, a celebrity physician best known for his “Dr. Oz Show,” announced Tuesday that he is running for U.S. Senate in Pennsylvania. Running as a Republican, Oz made the announcement a week after GOP candidate Sean Parnell abruptly suspended his bid after losing primary custody of his children in court. Parnell received endorsement from former President Donald Trump and was considered a leading candidate. “COVID has shown us that our system is broken,” Oz said in his first campaign ad, saying “Washington got it wrong” and “they took away our freedom without making us safer.” “As a heart surgeon, I know how precious life is. Pennsylvania needs a conservative who will put America first, one who can reignite our divine spark, bravely fight for freedom, and tell it like it is. That’s why I’m running for Senate,” Oz added. On his website, Oz lists the main issues he’ll …