Sen. Mark Warner, D-Va., announced Monday that he would vote against the confirmation of Judge Neil Gorsuch to the Supreme Court – saying he would vote both to support a Democratic-led filibuster and to oppose his confirmation.

Warner, who has cultivated an image as a centrist but tends to vote with Democrats, said the Colorado judge's "record and evasive responses" during his confirmation hearings as his rationale for voting "no."

He was among the list of undecided Democrats that Republicans were hoping could vote with them to end a filibuster and stave off a decision on whether or not to change Senate rules to allow for a simple majority vote to seat Gorsuch and other Supreme Court nominees.

"Despite his impressive academic credentials, Judge Gorsuch's record and evasive responses – even refusing to answer questions regarding his views of cases like Roe v. Wade and Citizens United – do not give me confidence that he possesses a judicial philosophy that will serve the American public well," Warner said.

The Virginia Democrat expressed "grave concerns" that Republicans would change the Senate rules to eliminate filibusters by the minority parties on judges in response. But he said that is not reason enough to vote in favor of Gorsuch.

"Such a threat is not alone reason enough to support a nominee who has not provided the Senate with sufficient assurances regarding his approach and judicial philosophy," Warner said.