http://blogs.cqpolitics.com/beyond/2008/10/why-mccains-voucher-remark-fel.html
“Because there’s not enough vouchers; therefore, we shouldn’t do it, even though it’s working. I got it,” McCain said, laughing with delight. Obama stared down and scribbled notes, ignoring him.
It wasn’t McCain’s best moment in the debate, and not just because no one laughed with him. (The audience had been instructed to stay quiet, so most jokes would fall flat.) The bigger problem was that, according to the Department of Education’s own evaluation, the District of Columbia school voucher program actually isn’t working.
The June 2007 report found that there were “no statistically significant” gains in reading or math scores in the first year for students who participated in the program.
McCain’s main point was that the lack of resources to run a program nationwide is no reason not to run a smaller program. But here’s a rule of thumb for sarcasm in debates: It doesn’t usually help you, but if you’re going to use it, make sure you’ve done your research first.
Link to the June 2007 report:
http://ies.ed.gov/ncee/pdf/20074010.pdf