To Run or Not to Run

YOU WOULDN'T know it from all the presidential candidates announcing lately, but there are other elections being contested in 1988 and even 1987. Or at least there are supposed to be. The Republicans, who have been stronger in presidential election years than in off years for the past several decades, would like to recapture in 1988 the Senate they lost in 1986. And they would like to win some more governorships too, particularly in the South, where three statehouses are up this year. The Republicans have won four of the last five presidential elections and came close in the fifth. But they've...