With Arizona and Michigan holding their Republican presidential primaries on Tuesday, the race for the GOP nomination moves on to Washington state, which holds its caucus on March 3, and 11 states that hold caucuses and primaries on March 6 -- including delegate-rich Ohio.
With 66 delegates at stake, the Buckeye State, which holds a primary, ranks second behind Georgia as the biggest prize up for grabs on March 6.
The Ohio poll of likely primary voters, released by the University of Cincinnati on Tuesday, finds Rick Santorum in the lead in Ohio with 37 percent. Mitt Romney stands in second with 26 percent, followed by Newt Gingrich with 16 percent and Ron Paul with 11 percent. Six percent say they are behind other candidates, while 5 percent are undecided. Almost half -- 47 percent -- say they could change their mind.
The poll of 542 likely Ohio Republican primary voters was taken Feb. 16-26 and had a margin of error of +/- 4.2 percent.