Donald Trump said Tuesday that the FBI's decision not to pursue charges against Hillary Clinton over her private email server is a "total miscarriage in justice."
"I really believe what happened is shocking and it is certainly shocking to legal scholars and I watch them and talk to them all the time," he said in an interview with Fox's "The O'Reilly Factor" scheduled to air Tuesday night. "They can't believe what happened. Whether it's General [David] Petraeus or others who suffered grave consequences for what they did Bill [Clinton], I think it's a great miscarriage of justice."
Trump said it was clear from FBI Director James Comey's comments -- including that Clinton's decision to use a private server was "extremely careless" -- that Clinton made "great mistakes" and is "essentially incompetent."
"Everyone was stunned at the end because if you listen to it it sounds like she had horrible judgment, she didn't know what she was doing," he said. "She was sloppy, she was just about as bad as you can be and then in the end the recommendation was what the recommendation was. I was surprised by that after listening to the first half of the speech especially the middle."
Earlier Tuesday, Trump tweeted that the FBI's decision in the case proved that "the system is rigged."
As for the tarmac meeting between former President Bill Clinton and Attorney General Loretta Lynch -- who later announced that she would accept the recommendation of career prosecutors in the case of Hillary Clinton's email practices -- Trump suggested both sides had bigger motives for meeting than just saying hello as a courtesy.
"As far as her husband is concerned, who just happens to be waiting on a tarmac and all of a sudden run in and talk about grandkids and golf for supposedly 39 minutes?" Trump asked. "It just doesn't happen that way. Life doesn't happen that way."
Trump said he will have to wait and "see what we shall see" before deciding how harshly to attack Mr. Obama for "influencing the case."
"I'm going to look into it very, very strongly and we will see what we will see," he said.