Google denied Wednesday that it gave President Barack Obama’s re-election campaign special access to a new advertising program, something a sales representative from the search and advertising giant had claimed in an email to customers.

Google spokesman Jake Parrilo denied strenuously that the Obama campaign had been granted special access to the pilot program, and chalked the email up to inaccurate “puffery” by the sales representative. The ad that appeared on RealClearPolitics, he said, was not a Google ad at all.

“This is an experiment and while we generally do not comment on those experiments we can tell you that we have not sold a single CPL [cost-per-lead] ad unit to any political candidates or committees,” said Parrillo.