(Image Credit: Tom Williams/Roll Call/Getty Images)

Rick Santorum's surge is not just limited to Michigan. New polls out today in Ohio and Tennessee, two big Super Tuesday states, show Santorum with strong leads over Mitt Romney.

A new Quinnipiac University poll shows Santorum leading Romney in Ohio 36 percent to 29 percent. The poll shows that Santorum has a double-digit lead with men in the Buckeye state - 38 percent to 25 percent - while women split their support almost evenly, with 34 percent favoring Santorum and 33 percent favoring Romney. Newt Gingrich and Ron Paul round out the poll with 17 percent and 11 percent, respectively.

A Vanderbilt University poll out in Tennessee gives Santorum a double-digit lead over Romney; 38 percent to 20 percent. Ron Paul received 15 percent in the poll, Newt Gingrich 13 percent, while the remaining 13 percent of those polled said that they were still unsure. Santorum has strong support over Romney among both men and women in Tennessee; 39 percent of women polled support Santorum while 22 percent support Romney, and 38 percent of men support Santorum, compared with 18 percent for Romney.

Tennessee and Ohio will hold their primaries March 6. Tennessee will award 58 delegates, Ohio 66.