Again on Tuesday, insurgent Republican candidates defeated establishment favorites in key primaries. This continues a trend we’ve seen throughout the primary season. So why does a longtime conservative leader see this as the movement’s greatest time? Why does he think the public is embracing conservatives after two election cycles dominated by Democrats? How are these Tea Party candidates different than other Republicans in Washington? And can they actually win in November? We ask Richard Viguerie, chairman of conservativehq.com and a key member of the conservative movement for the past 50 years.