Sen. Dianne FeinsteinDianne Emiel FeinsteinSenators push mandatory sexual harassment training for members, staff Bipartisan group of lawmakers aim to reform US sugar program Senate panel to hold hearing on bump stocks MORE (D-Calif.) said Sunday that Elena Kagan would be a "mainstream breath" on the Supreme Court.

"It will not be far right. It will not be far left. It will be in the middle," the Judiciary Committee member said on "Fox News Sunday."

But fellow Judiciary panel member Sen. Lindsey GrahamLindsey Olin GrahamCNN to air sexual harassment Town Hall featuring Gretchen Carlson, Anita Hill Trump wrestles with handling American enemy combatants Flake: Trump's call for DOJ to probe Democrats 'not normal' MORE (R-S.C.), while acknowledging that President Barack ObamaBarack Hussein ObamaOvernight Cybersecurity: What we learned from Carter Page's House Intel testimony | House to mark up foreign intel reform law | FBI can't access Texas shooter's phone | Sessions to testify at hearing amid Russia scrutiny Russian social media is the modern-day Trojan horse Trump records robo-call for Gillespie: He'll help 'make America great again' MORE would nominate a liberal to the court, said that he would have to be convinced in the hearings that start Monday that Kagan will not bring judicial activism to the bench.

"She'll have to convince me that all of this liberalism that she's lived with all her life can be put in a proper place and when she gets to be a judge she'll be left of center but within the mainstream of judging," Graham said.

Both senators agreed that Kagan was highly qualified to replace Justice John Paul Stevens, but Graham said there were questions about Kagan that needed to be answered.

"When it comes to the Supreme Court, we're going to have a challenging hearing, and I think she'll do well, but she's going to have to earn her way onto the court," he said.

"I believe the drift net has been out to find some disqualifying factor and it hasn't been found," Feinstein said.