Can the Republican Party find a presidential candidate capable of turfing Barack Obama out of office? The battle to win the Republican nomination is proving to be protracted and brutal, and right now the main beneficiary appears to be the man currently occupying the White House. Senator John McCain is the Republican candidate who ran against Obama and lost four years ago. Is the struggle to find a convincing Presidential nominee indicative of a Republican Party that has lost its way?(Image: John McCain. Credit: Getty Images)