Senate Republicans are planning to grill President Joe Biden's Supreme Court nominee about her rulings on child sex cases when her confirmation hearings begin next week.

Republican Senator Josh Hawley previewed the attack when he announced he found an 'alarming pattern' in Judge Ketanji Brown Jackson's treatment of sex offenders.

Republicans on the Senate Judiciary Committee circulated a background document on the topic, reported.  It suggests that Jackson 'routinely handed out light sentences but the lightest in all categories reviewed by Judiciary Republicans was in child pornography cases.'

Press secretary Jen Psaki went after Hawley for his questioning, accusing him of taking Jackson's record out of context.

And she got in a shot at the Republican senator from Missouri.

'I'm not sure if someone who refused to tell people whether or not he would vote for Roy Moore is an effective and credible messenger on this,' Psaki said in Thursday's press briefing.

Hawley, as a Senate candidate, had initially hedged on whether he'd support Moore, who had been accused of sexual misconduct with teenage girls. Hawley later said Moore should drop out of the race.

Jackson has been on Capitol Hill, holding one-on-one meetings with senators ahead of her confirmation hearings, which begin on Monday.

'As of today, Judge Jackson has completed 44 meetings with Senators of both parties, including every member of the Judiciary Committee. These have been engaging and respectful discussions that showcase her extraordinary qualifications, experience, intellect, and character,' wrote Doug Jones, who is handling Jackson's nomination for the White House, on Twitter on Friday.

He defended her judicial record.

'She brings unquestionable credentials to the table, and it's been a pleasure to hear her articulate her approach to cases which, like retired conservative judges have observed, is rooted solely in facts and the law,' he wrote. 

The White House and Jackson's advocates have described her time as a public defender and a member of the U.S. Sentencing Commission as a strength, noting she would bring a diversity of experience to the high court.