U.S. Republican vice-presidential nominee Alaska Governor Sarah Palin (L) and U.S. Republican presidential nominee Senator John McCain (R-AZ) share a laugh at a campaign rally in Hershey, Pennsylvania October 28, 2008.   REUTERS/Brian Snyder

Reuters Boston staff photographer Brian Snyder is traveling with Republican U.S. presidential nominee John McCain through election day November 4.

Senator McCain’s choice of Alaska Governor Sarah Palin as his running mate has been much written about, discussed and analyzed.  The two of them do not campaign together very often, so when they do appear onstage at the same time, as they did today during a rally in Hershey, Pennsylvania,  I watch their interactions (or lack thereof) very carefully.  The last time I photographed the two of them together, they actually stood on opposite sides of the stage.  At the beginning of this rally, Senator McCain and Governor Palin stood side by side, interacted and laughed together, creating a strong image.