Liberal political consultant James Carville sent a fundraising email to supporters of upstate New York congresswoman Louise Slaughter entitled “The Tea Party is Over.” In the email, Mr. Carville claimed the Tea Party isn’t entirely finished, but he said they can be eliminated by donating to “proud Democrats like Louise Slaughter.” “These Tea Party Republicans have worn out their welcome. But I’m telling you — getting rid of ‘em won’t be easy. They’re not leaving on their own. We’re going to have to boot them out the door like unwanted house guests,” Mr. Carville wrote. “That’s why we’ve got to...