Columbus, Ohio: Sen. Hillary Rodham Clinton certainly is in “must win” situation, after five consecutive defeats from her rival Democratic presidential hopeful Sen. Barack Obama.

According to some superdelegate, if she loses a few more primaries, she is going to lose everything.

“She has to win both Ohio and Texas comfortably, or she’s out,” said one superdelegate who has endorsed Mrs. Clinton.

Currently, the major problem for Clinton is that her supporters are slipping out of her reach, voters are shifting Obama’s side, and the momentum is tilting towards Obama. She is well aware of the problem. She knows that she must win upcoming contests in Ohio, Texas and Pennsylvania to keep pace with the surging candidacy of Sen. Barack Obama.

Clinton’s $5 million personal loan and the recent campaign staff shake-up have signaled that she’ll leave no stone unturned. Replacing her campaign manager, she has acted promptly to regain her lost ground after suffering defeats in five primaries and caucuses over the weekend, which came as anticlimax for her.

According to Gov. Ted Strickland, a longtime Hillary Rodham Clinton supporter, it would be hard for her to win the Democratic nomination without taking Ohio. He called Ohio and Texas the "firewall" Clinton needs to win the nomination.

On Monday, Strickland said, "It would be very difficult for her to proceed to eventual victory without winning Ohio. I'm not saying that that's not possible, but I think it would make it much more difficult."

Strickland reckons that Clinton is the better candidate because she is more experienced and would do better in a negative presidential campaign.

"Sen. Clinton is the most well-vetted candidate perhaps ever to seek the presidency. She is the candidate that is most prepared to stand up to the attacks that are obviously going to come," said Strickland.

The recently turned underdog, Clinton is competing in today's races in Maryland, Virginia, and the District of Columbia, with a hope to regain her foothold.

Her senior strategist, Mark Penn believes, “She has consistently shown an electoral resiliency in difficult situations that have made her a winner.”