Capitol Hill's reaction to the Pennsylvania Senate debate was brutal for Democratic nominee John Fetterman, from Democrats and Republicans alike. Why it matters: Multiple sources wondered why Fetterman agreed to debate when he clearly wasn’t ready. Fetterman struggled at times to respond to the moderators' questions, even with the assistance of a closed captioning device. "Why the hell did Fetterman agree to this?" one Democratic lawmaker and Fetterman backer told Axios. "This will obviously raise more questions than answers about John's health." Fetterman opened the debate by calling his health the "elephant" in the room. "I had a stroke. He’s...