Mitt Romney's tax returns had nothing to do with Sen. John McCain's decision to choose Sarah Palin as his running mate in 2008, according to the Arizona Republican, saying he chose the former Alaska governor because she was a "better candidate."
McCain received more than two decades worth of Romney's tax returns as the former Massachusetts governor was undergoing the vetting process four years ago, far more than Romney has released publicly in the 2012 campaign. Democrats have questioned whether McCain saw something untoward in those tax returns and decided to choose Palin instead.
McCain already had the old rich white guy vote, why in the world would he bring in a slightly less old rich white guy? It wouldn't garner him any more votes. He brought in Palin to try to get female votes and the votes of the far right, plain and simple. McCain himself said he say a plethora of Romney's tax returns and they were not an issue. Keep in mind, most politicians are filthy stinking rich.