Illinois Sen. Barack Obama will receive 42 delegates for his win in Wisconsin's Democratic presidential primary Tuesday, while his rival, Sen. Hillary Rodham Clinton of New York, will take 32, according to preliminary counts by the Democratic Party of Wisconsin.

The 74 pledged delegates are those that, by state party rules, must be delivered to the candidates based on the voting totals.

The results widen Obama's lead over Clinton in the hunt for delegates to lock up their party's nomination. Coming into Tuesday's contest, Obama had 1,281 delegates and Clinton had 1,218. It takes 2,025 to win the Democratic nomination.

Forty-eight of the Wisconsin delegates are awarded based on vote totals in the state's eight congressional districts. In the second congressional district, which includes Dane County, Obama will take five delegates to Clinton's three, the most lopsided total of any district in the state.

Besides the 74 pledged delegates, there are 18 unpledged so-called "superdelegates" in the state who are not required to vote for any candidate and who can support anyone they want. One of those, U.S.  Rep. Tammy Baldwin, D-Madison, has endorsed Clinton. Her campaign released a statement Wednesday saying that she remained committed to Clinton.

"Congresswoman Baldwin announced her endorsement of Senator Clinton many months ago," the statement read. "She supports Senator Clinton because she is the only candidate fully committed to health care for all Americans."