Donald Trump met with Republican National Committee Chairman Reince Priebus Thursday, just days after the Republican frontrunner backed out of a pledge to support the eventual Republican nominee.

Trump was in Washington D.C. to meet with his recently-formed team of foreign policy advisers, and met with Priebus at RNC headquarters in an unscheduled meeting behind closed doors.

Trump said in a tweet that he had a “very nice meeting” with Priebus and that he looked forward to bringing the party together.

The RNC called the meeting "productive."

"The Chairman and Mr. Trump had a productive conversation about the state of the race," Lindsay Walters, RNC national spokeswoman, said in a statement. "Meeting and phone conversations with candidates and their campaigns are common and will increase as we get closer to November."

 

In an interview Thursday night with on Fox News' "On The Record" with Greta van Susteren, Priebus said he could not say exactly what he talked about in the meeting with Trump, but that candidates aren't "going to get the data and tools of the RNC, run to be our nominee, and tell me they’re not going to support the party."

The meeting came just two days after Trump said at a CNN town hall Tuesday he had taken back his pledge to support the nominee as “I have been treated very unfairly” and listed both the RNC and the party establishment as those responsible.

Trump had previously said he would honor the pledge only if he was treated fairly by the Republican Party.