Republican presidential front-runner Donald Trump made a surprise closed-door visit to the Republican National Committee on Thursday after a tumultuous two days that featured a reversal of his pledge to support the party's nominee. Trump, who also has struggled to contain the fallout from his comments on Wednesday in support of punishing women for having an abortion, said on Twitter afterward he had a "nice meeting" with RNC Chairman Reince Preibus but divulged no details. "Looking forward to bringing the party together," he said. "And it will happen!" Trump's relationship with the RNC has been contentious at times, and he recently complained the party was not treating him fairly as it made preparations for a possible contested convention in July in Cleveland.