As a stroke victim, Senator John Fetterman has my deep sympathy. As well, he has my best wishes for recovery, a task to which he should devote himself full-time. But as he demonstrated yesterday in a hearing covering the damage to Interstate 95 in Philadelphia — a link vital to many of his constituents — he is incapable of representing them in the Senate. I watched with a mixture of pity and horror as he was unable to form basic sentences in English, much less pronounce simple words correctly, when Senator Carper from neighboring Delaware asked him to comment: Senator...