Because I'll tell you, there are going to be a lot of politicians that are going to try to co-opt the Tea Party movement.
After Japan invaded the Korean Peninsula in 1905, the conquerors sought to co-opt local pride to reinforce Japanese hegemony.
But no matter that difference, we crave to own and co-opt, rather than necessarily understand, it.
1650s, "to select (someone) for a group or club by a vote of members," from Latin cooptare "to elect, to choose as a colleague or member of one's tribe," from com- "together" (see com-) + optare "choose" (see option (n.)). For some reason this defied the usual pattern of Latin-to-English adaptation, which should have yielded *cooptate. Sense of "take over" is first recorded c.1953. Related: Co-opted; co-opting.