The American backlash against President Trump over his summit with Russian leader Vladimir Putin has been as ferocious as it was predictable.
Every possible vilification has been thrown at him. But it is the slur of Trump as "traitor" that puts this president in grave danger.
Democrats, Republicans, state intelligence pundits, hawkish media, liberal media — all have launched a torrent of attacks on Donald Trump for daring to meet with Putin in Helsinki this week.
The Washington Post accused Trump of "openly colluding with the criminal leader of a hostile power". Let those extreme words sink in for a moment. The implication is as serious as it can get.
As with other politicians and media outlets, the Post said the president had "betrayed" American intelligence services by siding with President Putin in denying that Russia had interfered in US elections.
Former CIA chief John Brennan denounced Trump as a "traitor" who had "committed high crimes" in holding a friendly summit with Putin.
It can't get more seditious than that. Trump is being denigrated by almost the entire political and media establishment in the US as a "treasonous" enemy of the state.