Serial what?
The Left has not caught Bush in one, single lie. Oh, they tried with the famous "16 Words," which is the best they could come up with. They tried for weeks. Didn't work.
They are currently trying to run with the idea that Bush "deliberately gave a false impression," or "allowed people to infer" something that wasn't true. As you might imagine, this attempt doesn't have a lot of traction.
Neither does the continuous effort by the Left to "give the false impression" that Bush is a liar. But then, if you tell a lie loud enough and often enough...