I wonder if anyone can tell us when the signer is sending while he says “George” and stammers.
I watched it a few times. I even found a YouTube that has the full broadcast, in case the interpreter was merely behind Biden's speaking.
She's not interpreting anything he's saying. She didn't fingerspell "George" or "Trump". It almost looks like she's signing from a pre-typed speech. She's talking about how important the vote is, and how he needs your support.