WE HEAR . . .
THAT political columnist Michael Tomasky is leaving New York magazine and moving to D.C. to edit the American Prospect, the political journal he describes as "somewhere to the right of the Nation and to the left of the New Republic" . . . THAT Shari Yost, who resigned as finance director for the Joe Lieberman campaign in what could be a big shakeup, was getting $24,000 a month.