To be fair, she was busy feathering her nest through influence peddling and also from the time spent scheming for her run at the Presidency. She didn’t have time to sponsor a lot of legislation.
Looking for this for a while. She didn’t even have to wait for her Senate seat to royally screw up something;
“Hillary’s Vaccine Shortage”
http://www.wsj.com/articles/SB106091266280731300