Tonight, Sen. John McCain (R-AZ) will debate his primary challengers, former Rep. J.D. Hayworth (R-AZ) and conservative "tea party" activist Jim Deakin in one of only two Republican primary debates. During the one hour debate, Hayworth will likely concentrate on McCain's 28 years in Congress with a focus on his position on immigration. Deakin said he will compare and contrast his approach in representing constituents to the "other two entrenched politicians." A McCain campaign spokesman said that the Senator "looks forward to a spirited discussion on the issues facing Arizonans." The LIVE debate will take place tonight at KTVK-TV...