By DAVID ESPO
Associated Press
February 21, 2008
WASHINGTON (AP) -- Democratic Sen. Hillary Rodham Clinton must win 57 percent of the remaining primary and caucus delegates to erase Barack Obama's lead, a daunting task requiring landslide-sized victories by a struggling presidential candidate.
Obama's victories in Wisconsin and Hawaii on Tuesday -- his ninth and 10th in a row -- left him with 1,178 pledged delegates won in primaries and caucuses in The Associated Press' count. Clinton has 1,024.
Another 1,025 remain to be awarded, most of them in contests in 14 states, Guam and Puerto Rico. It takes 2,025 to win the nomination.
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