Will the GOP have 30 presidential candidates in 2020?

The roster of potential 2020 candidates includes several of this year's primary losers, including Senators Ted Cruz of Texas and Marco Rubio of Florida, Gov. John Kasich of Ohio and [Gov. Scott] Walker, as well as younger hopefuls like [Sen. Tom] Cotton.They calculate that the experiment with Mr. Trump, if he loses, will trigger buyer's remorse within the party. The next nominee will be well positioned, they estimate, because the electorate will be ready for change after three consecutive Democratic terms in the White House."If you thought this year was an attractive race on our side, imagine 2020," said Phil Cox, a former executive director at the Republican Governors Association. "You'll have 30 people running." [The New York Times]