Klobuchar backs legalizing marijuana
Schumer threatens filibuster if Trump doesn't pick 'mainstream' court candidate
"If he doesn't nominate a mainstream candidate, we're going to go at him with everything we've got ... Because this is so, so important," Schumer said on NBC's "Meet the Press."
While Senate Majority Leader Mitch McConnell (R-Ky.) had suggested doing away with the filibuster, Schumer said Republicans "don't come with clean hands, having delayed Merrick Garland for a whole year."
President Obama nominated Garland to fill the vacancy left by the death of Antonin Scalia, but the Republican Senate blocked the nomination in hopes that a Republican would win the White House.
When Trump takes office in January, he will almost certainly appoint a conservative nominee to fill the vacancy.