Obama wins Maine caucuses, CNN projects

(CNN) -- Illinois Sen. Barack Obama will win Sunday's Democratic caucuses in Maine, sweeping the weekend's presidential contests, CNN projects.

Illinois Sen. Barack Obama speaks during a rally Sunday in Alexandria, Virginia.

With 99 percent of precincts reporting, Obama was leading Sen. Hillary Clinton of New York 59 percent to 40 percent. At stake are 24 delegates to August's Democratic national convention in Denver.

Obama's projected victory follows a sweep in Saturday's Louisiana primary and Democratic caucuses in Nebraska, Washington and the U.S. Virgin Islands.

Those contests gave him a lead over Clinton in pledged delegates to the convention, but Clinton still held a narrow edge over Obama when "superdelegates" -- elected officials and party leaders -- are included in the tally, according to CNN estimates.

Most of Maine was under winter storm warnings or snow advisories during the caucuses Sunday afternoon.