President Trump suggested that the FBI’s failure to prevent this week’s mass shooting in Florida could be due to the bureau’s ongoing investigation of Russian interference in the 2016 election.

“Very sad that the FBI missed all of the many signals sent out by the Florida school shooter. This is not acceptable,” the president wrote on Twitter. “They are spending too much time trying to prove Russian collusion with the Trump campaign — there is no collusion.”

Trump Blames FBI and Russia Investigation For Florida School Shooting 1

In a later tweet, Trump said that McMaster forgot to mention that the Russian interference has no influence on the outcome of the election.

On Friday, Mueller’s team announced that a federal grand jury had indicted 13 Russian nationals for illegal election activity.