“I think over the next couple of weeks you’re going to see some things that are very interesting,” Trump said after a speech in Nashville to a gathering of tea party activists.

“We’re going to make a decision very soon,” he added, “and I think a lot of people are going to be very happy.”

Trump has so far refused to pledge to support the eventual Republican nominee, saying his refusal to commit gains him leverage over the party establishment, which has been caught off-guard by his early dominance in the race. He’s also said repeatedly that he’d prefer to run as a Republican as long as the party treats him fairly.

But to appear on the ballot in South Carolina and several other states, he’ll have to pledge to support the eventual nominee.