Why is Congressman John Hall Rubbing Elbows With Congressman Lamborn?

All politics, even on a National Level are local. Last fall a major focus of my time was working to get John Hall elected to Congress. We in the grassroots were successful in our efforts, sending five term Republican Sue Kelly packing. Now, I understand there has to be cooperation across the isle in Washington, DC or at least the pretense of it. That being said, what is Congressman John Hall doing posing for a picture with Republican Congressman Lamborn who is most famous for his defense of Rush Limbaugh?