White House press secretary Sarah Sanders said Thursday that senators complaining about the scope of an FBI investigation have no one to blame but themselves for questions not asked of Christine Blasey Ford when she appeared before the Judiciary Committee last week.

"I can tell you the whole world watched as Dr. Ford was interviewed for hours by the individuals that have to make the decision. That's the senators themselves," Sanders said Thursday morning on "Fox & Friends."

"They had ample opportunity to ask any question they wanted of Dr. Ford. If they didn't get enough that was their own fault because they didn't step up to the plate and ask the questions they needed answers to," Sanders said. "To think that the FBI needs to interview her again is ludicrous. They had an opportunity to do so. If they didn't get to ask what they wanted it's their own mistake."

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Wednesday evening, the FBI concluded the investigation President Trump ordered last week at the bequest of Sen. Jeff Flake, R-Ariz., and others into multiple sexual assault allegations cast against Supreme Court nominee Brett Kavanaugh. That included the accusation made by Ford, who says Kavanaugh held her down on a bed, covered her mouth with his hand, and forcibly tried to remove her clothing at a high school party in the summer of 1982, when she was 15 and he was 17.

The FBI interviewed several people, including former classmates of Kavanaugh and Ford, but not Ford herself.

Some Democratic senators, like Sen. Chris Coons, D-Del., are making the case that the FBI did not interview enough witnesses in their investigation.

Senate Judiciary Chairman Chuck Grassley said Thursday morning that the FBI's investigation uncovered nothing new and found "no hint of misconduct."

“These uncorroborated accusations have been unequivocally and repeatedly rejected by Judge Kavanaugh, and neither the Judiciary Committee nor the FBI could locate any third parties who can attest to any of the allegations,” Grassley, R-Iowa, said in a statement. “There’s also no contemporaneous evidence. This investigation found no hint of misconduct and the same is true of the six prior FBI background investigations conducted during Judge Kavanaugh’s 25 years of public service.”