Judge Sonia Sotomayor is "within the mainstream" of jurists, a key Republican senator in her confirmation battle said Monday night.

"She's been a judge for 12 years, and when you look at her opinions, she's left of center but within the mainstream," Sen. Lindsey GrahamLindsey Olin GrahamSenate panel advances three spending bills Trump says he will sign executive order to end family separations Trump backs narrow bill halting family separations: official MORE (R-S.C.) said during an appearance on Fox News.

The comments come after a day in which Graham seemed to indicate some support for President Obama's choice to join the Supreme Court, marking a break with more conservative members of the GOP in the Senate -- including Senate Judiciary Committee Ranking Member Jeff SessionsJefferson (Jeff) Beauregard SessionsSessions says FBI agent Peter Strzok no longer has his security clearance Grassley wants to subpoena Comey, Lynch after critical IG report Sessions: 'We never really intended' to separate families MORE (R-Ala.).

Sessions said Sotomayor is "outside the mainstream" Monday morning during an appearance on CBS.

Indeed, "mainstream" was one of the top buzzwords during yesterday's opening day of hearings before the Judiciary Committee on Sotomayor's nomination.

"Her record shows that she is in the mainstream," Sen. Chuck SchumerCharles (Chuck) Ellis SchumerMontana's environmental lobby teams with governor to kill 600 jobs Dems allow separation of parents, children to continue, just to score political points Democrats' education agenda would jeopardize state-level success MORE (D-N.Y.), Sotomayor's guide through the confirmation proceedings, said during his opening statement on Monday. Sen. Dianne FeinsteinDianne Emiel FeinsteinGrassley wants to subpoena Comey, Lynch after critical IG report Senate Gang of Four to meet next week on immigration Live coverage: High drama as hardline immigration bill fails, compromise vote delayed MORE (D-Calif.) also praised the nominee's "mainstream legal reasoning" -- before being interrupted by protesters.

Graham gave Sotomayor some other Republican cover yesterday when he told the federal judge she'll likely be confirmed by the Senate, barring a "complete meltdown."