Parades are generally times when politicians come out to march with and wave to constituents. (At last year's Gay Pride Parade, City Council Speaker Quinn and Senator Clinton marched, and Mayor Bloomberg, Governor Spitzer, and Senator Schumer were at the Puerto Rican Day Parade.) But Monday's St. Patrick's Day Parade may have few politicians, because Lieutenant Governor David Paterson is being sworn in that day, too. The Staten Island Advance points out the swearing-in is......