Clinton makes a last stand in Ohio and Texas

By John Whitesides, Political Correspondent - Analysis

WASHINGTON (Reuters) - For Hillary Clinton, once viewed as the almost certain Democratic presidential nominee, it has come to this: Win in Ohio and Texas in three weeks, and again the next month in Pennsylvania, or go home.

The growing strength of rival Barack Obama, who decisively captured three more contests on Tuesday to extend his winning streak to eight, leaves Clinton few options in a grueling fight for convention delegates who select the nominee in the November election.

Clinton has made March 4 contests in Ohio and Texas, with a combined 334 delegates at stake, her last firewall in a battle that has tipped toward Obama. Pennsylvania would be the next big battleground on April 22, with 158 delegates at stake.

"Ohio and Texas are Clinton's last stand," said Democratic consultant Dane Strother, who is unaffiliated with either campaign.

"She needs Pennsylvania too. If she doesn't get those three, she can't get the nomination, the delegates aren't there," he said. "If you do the math, a split isn't good enough for her."

Obama's eight consecutive wins, strong fundraising and huge margins of victory have given him the upper hand just one week after a deadlocked Super Tuesday result put the two combatants at almost even strength in the Democratic struggle.

The Illinois senator has doubled Clinton's vote total in some contests and made inroads into the coalition of lower-income, women, Hispanic and senior voters who had fueled her campaign.

Most significantly, he has moved to a clear lead in pledged delegates who are bound to support him at the August nominating convention. A count by MSNBC puts Obama at 1,078 and Clinton at 969, with 2,025 needed to win.