A super PAC supporting Mehmet Oz, the celebrity surgeon and prominent candidate in Pennsylvania's Republican Senate primary, has released an attack ad that wildly distorts the past remarks and positions of Kathy Barnette, a party rival who is surging in late-campaign polls. The super PAC, American Leadership Action, tries to depict the right-wing Barnette, who ran unsuccessfully for the US House of Representatives in 2020, as a "crazy" advocate of liberal positions. To do so, though, the super PAC misleadingly truncated Barnette's past comments about race and policing and added inaccurate introductions to these shortened clips. The primary takes place...