Delaware Democratic Sen. Chris Coons said Tuesday on "The Story" that he is concerned that there is a "significant body of work" from Judge Brett Kavanaugh's past that has yet to be released or reviewed ahead of his Supreme Court confirmation hearing.

Coons, who sits on the Judiciary Committee, said that only a small percentage of documentation from Kavanaugh's work in the George W. Bush administration has been open to the Senate's review.

Martha MacCallum noted that on the whole, hundreds of thousands of documents have been made available to senators.

WATCH: Trump 'Red Cards' the Media at White House FIFA Event

'She Must Be Goldilocks': The Five Reacts to Cynthia Nixon Team Claiming Sexism Over Cold Debate Room

Coons said that while that may be true, the Bush-era documents that remain sealed while some senators push for a hearing beg the question of whether the Senate is "taking the time to do our advise-and-consent role right."

Coons, of Wilmington, said he is also concerned about Kavanaugh's support for strong executive power.

He said such a trait may come into play if a "Justice Kavanaugh" would have to rule on whether President Trump or another chief executive could exercise their power if they come under indictment.

Judiciary Committee Chairman Charles Grassley (R-Iowa) and other Republicans have pressed for an expeditious hearing schedule for Kavanaugh.

Watch more above.

'He's Full of It': 'Outnumbered' Slams Lanny Davis After He Walks Back Claim About Cohen, Trump & Russia

Rep. Meadows: There's 'Hard Evidence' FBI Officials Leaked Info to Press to Justify FISA Warrants