This year, as it turned out, black voters really turned out — more than for any other mayoral election in at least a generation. — By Rick Held Not so long ago, those postcards that landed in East Knoxville mailboxes, just before Knoxville’s mayoral election, could well have helped bring the election over the inner-city finish line for the candidate who mailed them. This time around, for Eddie Mannis, not so much.