If there was one thing that threatened to prevent Donald Trump from becoming President Trump, it was his temperament.
And if there was one issue about which Americans on both sides remained concerned about Trump, it was his relationship with Russia.
A new Washington Post report that Trump shared highly classified information with two senior Russian officials in the Oval Office last week lends legitimacy to both of those concerns. To many, it would seem a pair of their worst fears come true, all at once.
As the Post's Greg Miller and Greg Jaffe report, Trump provided classified details of an Isis (Islamic State) plot gleaned from an intelligence-gathering alliance in the Middle East that is secretive even among allies and within the US Government.
And he did so in a way that officials believe Russia, whose goals in Syria are often at odds with the United States', might be able to figure out who the partner is, jeopardising a key source of intelligence.