What does "a yes" mean? “It reduces the pressure on governments to offer the best services at the lowest cost,” he said in an interview. “We think it’s a very, very bad idea.” His group has suggested that a yes would violate the taxpayers’ pledge, although Mr. Norquist has been cautious about whether passage of the law would constitute a tax increase, since consumers are already supposed to pay sales taxes even if a merchant does not collect "it". 1)What does "a yes" mean? 2) since consumers are already supposed to pay sales taxes even if a merchant does not collect "it". What is "it" in the sentence "collect it"?