Senate Minority Leader Harry ReidHarry ReidThis obscure Senate rule could let VP Mike Pence fully repeal ObamaCare once and for all Sharron Angle to challenge GOP rep in Nevada Fox's Watters asks Trump whom he would fire: Baldwin, Schumer or Zucker MORE (D-Nev.) in an interview broadcast Sunday said Republicans will lose Senate seats over their plans to block President Obama’s Supreme Court nominee, Merrick Garland.

“They're going to wind up, as a result of this, losing Senate seats they shouldn't have lost. I'm kind of glad they're doing it, but it's so foolish,” Reid said on NBC’s “Meet the Press.”

Reid said Senate Majority Leader Mitch McConnellMitch McConnellOvernight Healthcare: High drama for ObamaCare vote | Freedom Caucus chair 'optimistic' about deal | Trump woos right High drama for ObamaCare vote Senate nixes Obama-era workplace safety rule MORE (R-Ky.) is “leading his Senate over the cliff.”

“And I am telling everybody that's watching this, the senators aren't going to allow that.”

Reid pointed to Iowa, where Senate Judiciary Chairman Chuck GrassleyChuck GrassleyLive coverage: Day three of Supreme Court nominee hearing Live coverage: Day two of Supreme Court nominee hearing Grassley, CNN host spar over Trump wiretap claims MORE (R) has “had 11 different editorials around that state, plus many law professors from the universities there in Iowa that have law schools say, 'What is wrong with you, Chuck?'"

Reid also said he doesn’t think Democrats in the future should do whatever it takes to prevent a Republican president from appointing a justice in the year before an election.

“Not only do I think they shouldn't do it, they wouldn't do it,” he said. "Whoever is elected president is elected for four years."