Barack Obama

Barack Hussein Obama wins Wyoming caucuses with 61 percent of the vote to Hillary Clinton's 38 percent.

Sen. Barack Obama is Wyoming's Democrat victory Saturday, a boost in his efforts to regain momentum after a rough week that included controversies involving two of his top advisers and losses in three states.

"This is a big win for us," David Plouffe, Obama's campaign manager said.

Obama led Senator Hillary Clinton 61 percent to 38 percent.

Meanwhile, Clinton's campaign sought to downplay the outcome, making the clear point that both candidates will gain roughly the same number of delegates due to the proportional way Democrats award them.

"We are thrilled with this near split in delegates and are grateful to the people of Wyoming for their support," Clinton campaign manager Maggie Williams said.

The Democratic battle is now expected to drag well into the spring, after Clinton managed last week to breathe new life into her bid by winning perennial battleground of Ohio and massive Texas.

On Monday, Obama will head to Mississippi. Clinton, who already campaigned there last week, will head to Pennsylvania, where the next big contest will be held April 22.

After Wyoming, Obama holds the lead for delegates, 1,578 to 1,468. It takes 2,025 to win the nomination.