I found this on Kaldi's Coffee's website blog. Apparently McCain had the opportunity to partake of some of their delicious brew when he was in Springfield. Here is what they said about this photo:
"McCain's been drinking coffee for a long time. Here he was drinking it in 1974. That's no cup of tea. Look how intelligent he looks: There's coffee in that cup, for certain. "
Did I mention that McCain was hot?!