Illustration of a bracket to choose the Republican presidential candidate to face Barack Obama
Cover Credit: LEFT, FROM TOP: CHIP SOMODEVILLA; ADAM DEAN / BLOOMBERG; BILL CLARK / ROLL CALL; IDA MAE ASTUTE / ABC (ALL VIA GETTY IMAGES). RIGHT, FROM TOP: MARK WILSON / GETTY IMAGES; STEVE POPE / GETTY IMAGES; MICHAEL IVINS / EPA; SPENCER PLATT / GETTY IMAGES; HYUNGWON KANG / REUTERS