Attorney General Jeff Sessions may invoke executive priviliege Tuesday if asked during an upcoming congressional hearing about private conversations he has had with President Trump, White House press secretary Sean Spicer said Monday.

"I think it depends on the scope of the questions," Spicer said when asked whether Sessions plans to withhold any information about his talks with Trump.

Spicer noted it would be "premature" to discuss "hypothetical" situations in which the attorney general may cite executive privilege during his scheduled appearance before the Senate Intelligence Committee on Tuesday. Sessions is expected to face questions about his role in the firing of FBI Director James Comey, his meetings with the Russian ambassador during the presidential race and whether he believes Trump obstructed justice by allegedly asking Comey to drop the FBI's investigation of an associate.

Spicer declined to clarify whether Sessions had sought permission from the White House to testify on Capitol Hil.

"He's going to testify, we're aware of it," the press secretary said.