Noah Feldman writes: The sitting president has accused his predecessor of an act that could have gotten the past president impeached. That’s not your ordinary exercise of free speech. If the accusation were true, and President Barack Obama ordered a warrantless wiretap of Donald Trump during the campaign, the scandal would be of Watergate-level proportions.

But if the allegation is not true and is unsupported by evidence, that too should be a scandal on a major scale. This is the kind of accusation that, taken as part of a broader course of conduct, could get the current president impeached. We shouldn’t care that the allegation was made early on a Saturday morning on Twitter.

How low has President Obama gone to tapp my phones during the very sacred election process. This is Nixon/Watergate. Bad (or sick) guy!

— Donald J. Trump (@realDonaldTrump) March 4, 2017

The basic premise of the First Amendment is that truth should defeat her opposite number. “Let her and Falsehood grapple,” wrote the poet and politician John Milton, “who ever knew Truth put to the worse in a free and open encounter?”

But this rather optimistic adage only accounts for speech and debate between citizens. It doesn’t apply to accusations made by the government. Those are something altogether different.

In a rule of law society, government allegations of criminal activity must be followed by proof and prosecution. If not, the government is ruling by innuendo.

Shadowy dictatorships can do that because there is no need for proof. Democracies can’t. [Continue reading…]