President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE late Saturday suggested the FBI could have stopped the shooter who killed 17 people and injured 14 others at a Florida high school this week if the bureau spent less time working on the Russia investigation.

"Very sad that the FBI missed all of the many signals sent out by the Florida school shooter. This is not acceptable. They are spending too much time trying to prove Russian collusion with the Trump campaign - there is no collusion. Get back to the basics and make us all proud!" Trump tweeted

Very sad that the FBI missed all of the many signals sent out by the Florida school shooter. This is not acceptable. They are spending too much time trying to prove Russian collusion with the Trump campaign - there is no collusion. Get back to the basics and make us all proud! — Donald J. Trump (@realDonaldTrump) February 17, 2018

His comment comes after the FBI said Friday that it had failed to follow "protocols" when it received a tip earlier this year about 19-year-old Nikolas Cruz, who officials say went on a rampage at Marjory Stoneman Douglas High School in Parkland, Fla., on Wednesday.

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In January, a person close to Cruz called the FBI's public tipline and raised concerns about a possible school shooting, citing his gun ownership and desire to kill.

But the FBI never reported the tip to its Miami field office or investigated the claim, the bureau said Friday.

Many lawmakers have called for an investigation of the FBI since it was first reported that they were tipped off about the alleged gunman being a possible threat.

Trump's tweet also comes after the Friday indictments from special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's team charged that 13 Russian nationals and three Russian organizations attempted to sow discord in the 2016 U.S. presidential election.