Donald TrumpDonald TrumpTrump: I was 'psyched to terminate' NAFTA Trump: 'Major, major' conflict with North Korea possible Cohn: People 'wasting time' calling for Trump's tax returns MORE said during Saturday night's Republican presidential debate that the GOP-controlled Senate should block any potential nominee from President Obama to succeed Supreme Court Justice Antonin Scalia, who died unexpectedly earlier in the day.

"I think it's up to Mitch McConnellMitch McConnellSchumer blocks one-week stopgap funding bill Overnight Finance: Dems explore lawsuit against Trump | Full-court press for Trump tax plan | Clock ticks down to spending deadline Hundreds of former EPA employees blast Trump on climate change MORE and everybody else to stop it — it's called delay, delay, delay," the White House hopeful said during the debate in Greenville, S.C., a week before the state's Republican primary. 
Trump, who leads in the South Carolina polls by almost 19 points in the RealClearPolitics average of polls, admitted that if he were currently in his last year as president he would likely try to appoint a Supreme Court nominee, and predicted that Obama will nominate someone despite Republican pushback.
Senate Majority Leader Mitch McConnell (R-Ky.) and top Senate Republicans have said they believe the next president, not Obama, should appoint Scalia's successor to the Supreme Court, leaving a vacancy on the high court for approximately a year.
Democrats argue that move would be irresponsible, and Obama pledged Saturday evening to nominate someone to fill the seat. 
Scalia, 79, was found dead during a hunting vacation in Texas.