Anti-immigration groups are talking about demonstrating, as are environmentalists and other activists. But the biggest protest could well be the DEA Go Away action organized by Sensible Colorado, which is urging medical marijuana patients to show up at noon and urge Obama to "Get the DEA Out of Colorado."
Given how rigidly scheduled Obama's official visit is -- he's landing at Buckley shortly before 3 p.m., heading to the Fillmore, then going to a private cocktail reception to raise money for Senator Michael Bennet -- this pro-grass rally has the potential to grow a lot more interesting than the official "Grassroots Rally."