Let\u2019s state the obvious: John Fetterman struggled to effectively communicate during his one and only Senate debate with Mehmet Oz Tuesday in Harrisburg.\xa0\nWe don\u2019t usually dwell on a single debate in a single race, but this one is different. Control of the Senate, and the future of policymaking in Washington, may hinge on the outcome of the Fetterman-Oz race.\nThe conventional wisdom over the summer was that Oz was a deeply flawed candidate who couldn\u2019t win, but the race is a toss-up. Republicans just decided to pour an additional $6 million into Pennsylvania to help Oz. \u201cWe believe if we win Pennsylvania, we win the majority,\u201d Steven Law, who runs the most important Senate GOP super PAC, told POLITICO Tuesday.\nSubscribe to the POLITICO Playbook newsletter\nRaghu Manavalan is the Host of POLITICO's Playbook Daily Briefing.Jenny Ament is the Executive Producer of POLITICO Audio.