This is from, of all places, NPR:
“We always look at the question: how interested are you in the upcoming elections on a 1-to-10 scale, with a 9-to-10 being the most interested.” said Neil Newhouse of Public Opinion Strategies, a Republican research firm, who pointed to a recent Wall St Journal/NBC News poll his firm did with Hart Research Associates.
“In a presidential election, it doesn’t mean as much because everybody votes. In a mid-term election, where you’re looking at 40 percent turnout, it does make a difference… Among voters who rate their interest a 9 or 10, Republicans have a 15-point advantage, 53 [percent] to 38 [percent]. So you have Republicans now gaining the same kind of intensity they had in 2010. It’s like our guys are campaigning downhill as opposed to the Democrats.”
But, as the title says, don’t get cocky. “Confident” is fine, though. People react well to that and it’s good for morale.