Hopes for Republican presidents down the road would be slim if Democratic nominee Hillary Clinton were to defeat Donald Trump, conservative commentator and best-selling author Ann Coulter told CNBC on Tuesday.



Coulter said on "Squawk Box" a Clinton presidency would usher in amnesty for undocumented immigrants and open borders, stacking the deck with future voters.

"There will be no hope for any Republican winning another election. There's no point to what I do, what talk radio hosts do, what Fox News does," Coulter said. "Nobody goes to the game if you can't win."

But Coulter does not believe Clinton will prevail, despite leading in the polls with just 76 days until the election. Coulter predicted: "The polls will get closer because [Trump] is going to win."