GOP Presidential candidate Mitt Romney held a rally with supporters at the Tri-City Christian Academy, in Chandler, Arizona.
A poll released on Monday shows Romney slightly ahead of former Sen. Rick Santorum (R-PA). According to Public Policy Polling, Romney leads Santorum 36% to 33%, but given the poll's +/-4.8% margin of error, the two candidates are almost tied.
Romney and Santorum are in a close race in Arizona and Michigan. Both states hold primaries next Tuesday, Feb. 28.
Romney is also facing potential fallout over allegations that a campaign volunteer, Sheriff Paul Babeu, abused his office by threatening to deport a former boyfriend. The sheriff resigned from the Romney campaign over the weekend.
All four Republican presidential candidates take part in a CNN hosted debate tonight in Mesa, Ariz.