I've recently heard the following sentences:
What is this tell us about the deployment of first self driving cars? What do we learning from this?
Both violate standard grammatical rules. But since it was in a speech of a professional reporter from The Economist Radio I guess there is some rule explaining why this is the valid usage.
Here is the link on the radio show (starting from 5:18).
Question: Is this a grammar mistake? If not, what is the rule behind it?