Presumptive Republican presidential nominee John McCain has been courting conservatives by saying he'd appoint conservative judges. But he's also trying to appeal to independents and blue-collar Democrats on issues like global warming.
Co-host Steve Inskeep talks to David Keene, chairman of the American Conservative Union, about the Arizona senator. Keene says McCain still has issues appealing to the Republican base. But Keene is "marginally more reassured" by McCain's efforts to solidify that base in recent weeks.