It might be purely accidental that the government targeted precisely this biggest threat to the president. It may just be that a bureaucracy dominated by liberals picked up on not-so-subtle dog whistles from its political leadership. Or, it might be that direct orders were given. In any case, it doesn't take a conspiracy theorist to note that the president's team was competent enough to recognize the threat from the Tea Party and take it seriously. The Obama campaign has made no secret of its efforts to revolutionize turnout models for the most recent campaign. Its remarkable competence turning out its own voters has been widely discussed, and it seems quite plausible that efforts to suppress the Republican vote would have been equally sophisticated.
Voter suppression. --ts