Dec 3 2019 News Google’s limits on political ads have a loophole Trump could tap That’s where the loophole shows up. Google’s new limits should work on YouTube and Search ads because they can only be bought through Google. But many Google display ads are put up for auction on Google’s ad exchange, and advertisers can bid on these marketing spots using whatever targeting data and tools they want. “Advertisers can skirt this policy and still access the exchange,” says Grace Briscoe, a vice president at Centro, which sells tools for marketers to bid on ad exchanges, including Google’s. Read more in Advertising Age.