Conversation so far:
what did Gavin Newsom do as mayor?
He signed the Health Choices Plan in 2007 to provide San Francisco residents with universal healthcare.
do people benefit from it?
CANNOTANSWER.
what happened in 2004?
he directed the San Francisco city-county clerk to issue marriage licenses to same-sex couples, in violation of the state law passed in 2000.

Question: did he sign any thing in 2007?
Self-contained rewrite: Did Gavin Newsom sign any thing in 2007?