The mainstream media is misleading the public by adopting a “fuzzy math” in treating the delegate counts for the Democratic nominating convention as carved in stone.

Given its bias against Donald Trump, the media are happy to parrot the Republican establishment’s prediction that their convention in Cleveland will be an “open convention” — that is, open to manipulation by the apparatchiks and the rules they set.

By the same token, given its pronounced bias in favor of Hillary Clinton, the media gladly repeat the spin of the Clinton campaign and the Democratic establishment by portraying that party’s contest as essentially over.

Not only compromised television anchors like MSNBC’s Chris Matthews, whose wife is drawing support from various Clintonites in her bid for a congressional seat in Maryland, are implying that the Democratic frontrunner’s lead in delegates is insurmountable. As a rule, pundits and even print reporters glibly adopt the inevitability spin.