HILLARY CLINTON, MCCAIN HELD VODKA-DRINKING CONTEST Fri Jul 28 2006 19:19:50 ET On a congressional trip to Estonia, Sen. Hillary Rodham Clinton astonished her traveling companions by suggesting the group do what one does in the Baltics: hold a vodka-drinking contest! Delighted, the leader of the overseas delegation, Sen. John McCain, quickly agreed, the NEW YORK TIMES is planning to report on Saturday. The after-dinner game went so well -- memories are a bit hazy on who drank how much. McCain later told people how unexpectedly fun he found Hillary to be. TIMES reporter Anne Kornblut has filed a story...