Later in the article:
Trump also gave a 40 percent chance that he would choose his running mate from his former rivals in the race for the nomination.
He said he has a good relationship with John Kasich, but the Ohio governor, who was the last to drop out, is unlikely to be his VP choice. “I not sure John even wants it.”
“Trump also gave a 40 percent chance that he would choose his running mate from his former rivals in the race for the nomination.”
That means there is 60% chance that he will not. I like those odds better.