But Trump’s latest Twitter outburst is also full of inaccuracies. The answer to his question about why Obama didn’t do more was actually in former Secretary of Homeland Security Jeh Johnson’s testimony on Thursday. As Johnson told Congress, the Obama administration was concerned that if it tried to blow the whistle publicly it would play into Trump’s hands and give the impression of trying to influence the election.

“One of the candidates, as you recall, was predicting that the election was going to be ‘rigged’ in some way,” Johnson said, referring to Trump. “We were concerned that by making the statement we might, in and of itself, be challenging the integrity of the election process itself.”

Johnson is not the only former top official to indicate that the White House was worried that any intervention would be viewed as tampering—and since the administration expected Hillary Clinton to win, officials figured they could safely wait until after the election to reveal the scope of Russian interference. In retrospect, it’s clear that the DNC erred in not moving faster or more aggressively to counter hacking attempts. Veterans of the Obama administration have also expressed regrets about not going public sooner—as then-FBI Director James Comey reportedly wished to do.

The White House and Democrats fell into a catch-22: Russian interference was designed to aid Trump, but if they themselves mentioned that interference, it would look like just the “rigging” that Trump was warning about.

Trump continues to claim vindication about collusion with Russia from testimony by officials who say nothing of the sort. So far, no evidence has emerged solidly demonstrating that the Trump campaign was colluding with the Russian government to interfere with the election, though the FBI was investigating that possibility, and Special Counsel Robert Mueller has now taken over the inquiry. On several occasions, intelligence officials have said that they had no evidence of collusion, and Trump has taken that as proof that there is no evidence.

Compare what Trump said about Johnson—“Jeh Johnson is latest top intelligence official to state there was no grand scheme between Trump & Russia”—with what Johnson actually said. Adam Schiff, the ranking Democrat on the House Intelligence Committee asked Johnson whether he knew what information Comey was acting on when he opened a counterintelligence investigation.

“No, not as I sit here. If I did, I’m not sure I could talk about it in open session,” Johnson said. He added, however, that he believed Comey would have had some evidence before opening an investigation. Johnson’s testimony was good news for Trump: Had Johnson said he knew of hard evidence of collusion, that would have been very bad for the president, and he didn’t say that. But his comment was not the full vindication Trump claims.