I marched with the Tea Party on Washington April 15th of 2010 and September 11th of 2010 and there was never a mention of Libertarians. In fact, I didn't even hear about the existence of the libertarian party until 2011 and Gary Johnson's run for president. At that point, I immediately became a libertarian as it fit more with my personal ideology. If Libertarians had anything to do with the tea party, they kept it very quiet at the two largest tea party events ever.