Republicans are considering postponing his confirmation hearing this week as senators pore over potentially new negative information that committee members have received, according to GOP sources familiar with the matter. And Senate Democrats are digging into his record after being made aware of potential new problems with the nomination.

On Monday evening, committee Democrats huddled in the Capitol office of Sen. Jon Tester (D-Mont.), the top committee Democrat, to plot strategy.

“There’s a need for very exacting and close scrutiny and vetting,” said Sen. Richard Blumenthal (D-Conn.) after the meeting. “And some questions that need to be answered. I’m not going to comment on any of the specifics, except to say we’re going to be doing very close and careful scrutiny.”