Which is a bigger terrorist threat to the United States today - radical Muslims, the Tea Party, local militia groups, the Occupy Wall Street movement, or other religious or political extremists?
Note that the question specifically asks about "terrorist threat", not merely "whom do you like least" or what-have-you. The results?
However, among those who approve of the president's job performance, just 29% see radical Muslims as the bigger threat. Twenty-six percent (26%) say it's the Tea Party that concerns them most. Among those who Strongly Approve of the president, more fear the Tea Party than radical Muslims.
Even if you don't like the Tea Party people, even if you feel threatened by the Tea Party in some fashion... how in the world can you construe them as a "terrorist threat"? I'm not aware of a single instance of Tea Party instigated violence. Twenty-six percent of Obama's supporters are either paranoid, ignorant, or insane.