As the Colorado Independent reported in July, Lamborn and Reps Scott Garrett, R-N.J., and Thaddeus McCotter, R-Mich., launched a House caucus aimed at defending the nation against international treaties they see as threats to American rights and national interests. Lamborn’s so-called sovereignty movement has gained surprising momentum.

Here’s how the movement looked on the ground in St Louis.

At his first workshop, Gaffney took a question on the North American Union and stated that it “wasn’t black helicopter stuff.” Nevertheless, the people behind the this attack on sovereignty, Gaffney said, might miss their goal of uniting the United States, Mexico and Canada by 2010.

Read more of Dave Weigel’s reports from the How to Take America Back conference at the Washington Independent, the Colorado Independent’s sister site in D.C.