Texas Senator Ted Cruz, the only GOP hopeful to formally announced his candidacy thus far, has shot up in the rankings in a new CBS News poll. Thirty-seven percent of those surveyed said that they would consider voting for Cruz in March, up 14 points from when the same question was asked a month ago. 

By comparison, 51 percent said they would vote for Bush, just two percent higher than did in February. 

Still, while Cruz is enjoyed a one-month bump, the conservative Texan continues show serious weakness among Republican voters. Twenty-two percent of those surveyed said they could not vote for Cruz, one point higher than in February’s poll. Twenty-seven percent of those polled said they could would not vote for Bush in March, while 26 percent said the same in February.