Conversation so far:
what did Gavin Newsom do as mayor?
Newsom focused on development projects in Hunters Point and Treasure Island. He signed the Healthy San Francisco Plan in 2007 to provide San Francisco residents with universal health care.
do people benefit from what Gavin Newsom do as mayor?
what happened to Gavin Newsom in 2004?
Newsom was sworn in as mayor on January 3, 2004.

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