I think Romney is the perfect example of a politician who believes his election is more important to the country than any particular set of policies. So you could say he is perfectly sincere in his belief that getting himself elected is more important than being honest.

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A nation of slaves is always prepared to applaud the clemency of their master who, in the abuse of absolute power, does not proceed to the utmost extremes of injustice and oppression.
Edward Gibbon