As far back as 2009, Biden was rocking the Ray-Bans (+ a scarf!)
By 2010, the Ray-Bans had become so closely associated with Biden that President Obama was mentioning them at campaign rallies. "Plus, Joe looks cool in those glasses, too, doesn't he?," Obama said in Philadelphia.
When President Obama's campaign wanted to "welcome" the VP back to the trail in 2012, they posted this image on their site.
In the fall of 2012, Biden was fully sunglassed while stumping in New Hampshire.
And, just in case you thought the sunglasses were only for the good times, here's Biden wearing the Ray-Bans at a ceremony for the late Ariel Sharon earlier this year.