May 12 (Bloomberg) -- Hillary Clinton asked West Virginia voters to turn her lead in polls there into an overwhelming victory in the state's Democratic presidential primary tomorrow.

``Let's get a big vote here,'' Clinton told breakfast customers at Tudor's Biscuit World in Charleston. At an afternoon rally in Logan she said tomorrow's results will ``be a crucial turning point in this election.''

Trailing rival Barack Obama in the popular vote, delegates and fundraising after more than four months of primaries and caucuses, Clinton is barnstorming across West Virginia in search of a large enough margin of victory to keep her campaign going until the last primary on June 3. Still, even a landslide tomorrow wouldn't let her overtake Obama in the chase for delegates who will decide the nomination.

In West Virginia, which has 28 pledged delegates at stake in the primary, Clinton has a lead of 56 percent to 27 percent, according to a Rasmussen Reports poll of 804 likely primary voters released May 4.

Obama, campaigning there today, conceded that Clinton likely would win the state.

``I'm extraordinarily honored that some of you will support me,'' Obama, 46, said in Charleston. ``and I understand that many more here in West Virginia will probably support Senator Clinton.''

Clinching the Nomination

Obama continued to increase his delegate lead over Clinton, getting endorsements today from four party superdelegates, including Hawaii Senator Daniel Akaka and Representative Tom Allen of Maine. Among superdelegates, he now is ahead of Clinton 281 to 274.5, according to lists and public announcements from both campaigns. At the start of the campaign Clinton had more than twice as many superdelegates as Obama.

Akaka called Obama ``the antidote to cure Washington of the uninspired, partisan politics that has plagued our country far too long.''

The superdelegates are Democratic Party officials and officeholders who aren't bound by the results of primaries and caucuses. Among pledged delegates awarded in those contests, Obama has 1,588 to Clinton's 1,426. A candidate needs a total of at least 2,025 delegates to be the nominee.

According to the Obama campaign's count, the Illinois senator is 150 delegates away from clinching the nomination. The figures don't include Florida and Michigan, which were stripped of their delegates by the national party for holding early primaries.

Crucial State

Clinton, at Westside High School in Clear Lake, told a few hundred supporters that it took a win in West Virginia to make John F. Kennedy president and that Democrats have to win here to take back the White House in November.

``Democrats don't get elected president unless West Virginia votes for you,'' Clinton, 60, a New York senator said. ``I'm here today because I know what's really going to matter tomorrow: It's the votes of the people of West Virginia.''

In an e-mail to supporters last night, campaign Chairman Terry McAuliffe, said a big win in West Virginia could help Clinton surpass Obama's popular vote total, which is ``a key part of our plan to win the nomination.''

``We need every last vote we can get in West Virginia,'' McAuliffe wrote.

Obama is ahead of Clinton in the popular vote by more than 800,000 ballots, excluding the results from Florida and Michigan, according to totals released by party and state officials where contests already have been held.

Immediate Relief

Campaigning across West Virginia, Clinton, 60, has spoken of the need for ``immediate relief'' from high gas prices by suspending the federal gas tax and criticized Obama for not supporting the idea.

She accused oil companies and energy traders of artificially keeping prices high and said as president she would investigate their practices. And she vowed to take on the Organization of Petroleum Exporting Countries.

``I believe we should go right at OPEC,'' Clinton said today. ``They have to know we're not going to sit idly by while they manipulate oil prices.''

While there are few direct attacks on Obama during her stump speeches, in Eleanor last night at George Washington Middle School, she indirectly criticized her ``opponent.''

``My campaign is not about speeches; it's about solutions,'' she said. ``It's not about rhetoric; it's about results.''

Her sharpest attacks have been directed at President George W. Bush, who she said has put the nation into a ``precarious position'' by increasing the budget deficit and starting an ill- advised war.

While Clinton hasn't directly addressed her sagging fortunes, kicking off the rally in Eleanor, she told of a favorite quote from the town's namesake, Former Fist Lady Eleanor Roosevelt. A woman, Roosevelt once said, is like a bag of tea.

``You never know how strong she is until she is in hot water,'' Clinton said.

To contact the reporters on this story: Nicholas Johnston in Logan, West Virginia, at njohnston3@bloomberg.net

Last Updated: May 12, 2008 17:45 EDT