The Senate Judiciary Committee has advanced the nomination of a 38-year-old judge and ally of Senate Majority Leader Mitch McConnell to serve on a federal appeals court, despite Democrats’ objections that he’s inexperienced and biased against the Obama health care law.

The panel's 12-10, party-line vote Thursday sets the stage for Justin Walker’s likely confirmation in the GOP-controlled Senate.

Walker, a protege of both McConnell and Supreme Court Justice Brett Kavanaugh, told senators last month that he will have an open mind on the Affordable Care Act, adding that he was writing as an academic and commentator when he criticized as “indefensible” a Supreme Court ruling upholding the law.

Walker, who was confirmed as a federal judge last fall, declined a request by Senate Democrats to recuse himself on matters related to the health care law if he’s confirmed to the U.S. Court of Appeals for the District of Columbia Circuit. The court is widely considered the second-most powerful in the nation and frequently serves as a launching pad for a seat on the Supreme Court. Four current justices, including Kavanaugh, served on the D.C. circuit.

Sen. Dick Durbin of Illinois, the No. 2 Senate Democrat, called Walker's nomination a travesty and an affront to other, more qualified conservative judges.