President Donald Trump has transformed the Supreme Court with a conservative supermajority, but he now faces a Democratic-led Senate ready to challenge his judicial picks. Senate Minority Leader Chuck Schumer has promised to block any "right-winger" nominees to the Supreme Court. Democrats will hold at least 54 seats next year, giving them a significant majority to block Trump's nominees. Schumer has not specified whether he would hold a Supreme Court vacancy open until after the next presidential election. Trump has named three of the current justices, cementing a six-judge conservative supermajority.