On Sunday, she had issued a challenge to the man who defeated in the 2016 presidential race, writing in a tweet “Great World Cup. Question for President Trump as he meets Putin: Do you know which team you play for?”

After his meeting with Putin on Monday, Trump attacked Clinton and the Democratic National Committee who were victims of Russia’s hacking during the 2016 campaign. And when asked what he thought of the intelligence community’s assessment that Russia launched an aggressive campaign against the United States by interfering in the election, he bolstered Putin’s denials and said Russia would have had no reason to meddle.

Observers across the board acknowledged that Trump’s performance was a stunning display of supplication to the authoritarian leader.

So Clinton, responding to her own challenge to Trump about which team he plays for, tweeted the simple rebuke: “Well, now we know.”