The House Freedom Caucus draws considerable attention for its members unstinting fealty to President Trump. The Problem Solvers Caucus tries to bridge the partisan divide by including an equal number of centrist-leaning Democrats and Republicans.

Then there’s the Congressional Cut Flowers Caucus, not exactly a political powerhouse, but notable as one of dozens of caucuses on Capitol Hill. And it has a serious legislative agenda, with members pushing H.R. 3019 to compel the federal government to only buy blooms grown in the United States.