The Tea Party movement is not easily defined, primarily because it comprises hundreds of groups at the grassroots level, of varying size, influence and priorities. It is highly factionalized, with no clear leadership or centralized structure. This is highlighted by the fact that it is not uncommon for different groups affiliating themselves with the movement to adopt disparate stances with respect to a given issue. Nonetheless, the generally consistent recourse to the Constitution across the movement with respect to various issues has helped facilitate scholarly examination of the movement.
