The highly anticipated Pennsylvania Senate debate on Tuesday night was a fast-paced affair dense on policy but relatively light on the personal attacks that have defined a key race for who controls Congress' evenly split upper chamber.

It also put Democratic Lt. Gov. John Fetterman's stroke symptoms back in the spotlight -- as well as what he said was his resilience and recovery from, as he put it, a notable but not disqualifying challenge.

Many eyes were on Fetterman's health as he took the stage. He spoke haltingly and sometimes inconsistently throughout the debate, even more so than he has at campaign events since returning to the trail in August, three months after his stroke. At times he seemed to struggle to complete his answers.

Two monitors were hung above the heads of the moderators, which transcribed both the questions and Republican Mehmet Oz's answers in real time, to help with Fetterman's auditory processing issues, which outside neurologists have said are no indication of cognitive issues for stroke survivors.