When lawmakers head to the country's capitol, there are a vast number of committees, panels and groups to sign up for.

Now, add to that the sharp rise in the number of congressional caucuses.

Some, like the Congressional Black Caucus or the Republican Study Committee, wield influence. But now a member can be part of the Bourbon Caucus, the Bike Caucus or the Hockey Caucus.

Here to tell us more is reporter Sarah Mimms with the National Journal.