Sen. Minority Leader Charles Schumer Chuck SchumerMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security Warren, Schumer introduce plan for next president to cancel ,000 in student debt Schumer lashes out at Trump over 'blue states' remark: 'What a disgrace' MORE (D-N.Y.) said on Sunday that he is prepared to leave open the ninth seat on the Supreme Court.

“If the nominee is not bipartisan and mainstream, we absolutely will keep the seat open,” Schumer told CNN’s “State of the Union.”

The Supreme Court vacancy has been open since last February, when Supreme Court Justice Antonin Scalia passed away.

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Schumer said he is prepared to fight "tooth and nail" should Trump not choose a mainstream nominee.

Former President Barack Obama Barack Hussein ObamaThe Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon Trump appointees stymie recommendations to boost minority voting: report Obama's first presidential memoir, 'A Promised Land,' set for November release MORE had nominated Merrick Garland to fill the vacancy. The Senate did not take up Garland’s nomination for a vote.

Garland reportedly returned to his job as a federal appeals court judge last week.

Schumer on Sunday also railed against Trump's Cabinet picks, calling his selections "troubling."