What it does
A plain-language summary is coming. Here is the official summary from the Congressional Research Service:
Forgotten Heroes of the Holocaust Congressional Gold Medal Act This act provides for the award of a single Congressional Gold Medal to 60 diplomats posthumously in recognition of their brave and vital service of saving Jews during World War II. The single gold medal shall be presented collectively to the eldest next of kin of each of the 60 diplomats and then be given to the U.S. Holocaust Memorial Museum.
How Congress voted
This law passed by voice vote or unanimous consent, so there is no record of how individual members voted.