(CNN) - Former Bill Clinton Press Secretary Dee Dee Myers is the latest to join the chorus of those claiming that Texas and Ohio are must-win states for Hillary Clinton.
Echoing the former president's sentiment, Myers told CNN on Thursday that Super Tuesday was initially must-win for Clinton, but “looking at Texas and Ohio, it’s a do-or-die test.”
She also added that not only does Clinton have to win those states, but she also has to win by large enough margins to chip away at Barack Obama's lead in the delegate count.
According the latest CNN estimates, Clinton trails Obama by 102 delegates with 1,267 to his 1,369 . However, Clinton leads in the superdelegate race with 236 to Obama's 185 .
Myers, who has not formally endorsed a presidential candidate, said Clinton holds overwhelming support among voters who view experience as “the most important credential.”
New Jersey Sen. Robert Menendez, a Clinton supporter, said he believes the New York senator will win in Texas because of her ability to speak on the issues.
“I think it’s Hillary’s message that is going to achieve victory on that day, ” Menendez told CNN on Thursday. “In Texas, she’s been talking about the foreclosure crisis. [She is] the only candidate that has a plan to deal with it.”
There are 439 delegates up for grabs in the March 4 contests - which are being called the "Second Super Tuesday" - in Texas, Ohio, Vermont and Rhode Island.
–CNN's Emily Sherman