Donald Trump’s Republican congressional allies are throwing up different defenses against impeachment and hoping that something may sell. They say that he didn’t seek a corrupt political bargain with Ukraine, but that if he did, he failed, and the mere attempt is not impeachable. Or that it is not clear that he did it, because the evidence against him is unreliable “hearsay.”
It’s all been very confusing. But the larger story — the crucial constitutional story — is not the incoherence of the president’s defense. It is more that he and his party are exposing limits of impeachment as a response to the presidency of a demagogue.