

"I'm only interested in the first ballot," he said during a rally in Hagerstown, Md.

"I'm not interested in second, third, fourth, nineteenth, because I'm really interested in winning it early and that's it."

Trump said he's not "playing games," adding he's going to win in states that other Republicans are not even going to campaign in.

But during the rally, Trump slammed the primary system, calling it unfair.