A top Trump aide will have to give up working with top advisors dealing with the wars in Ukraine and Iran, according to a new report.Josh Gruenbaum was a former advisor for Jared Kushner and Steve Witkoff. A report by Politico on Wednesday quoted anonymous sources who said that "he fell out of favor" and had a "penchant for self-promotion and an abrasive work style" that "rankled some of Trump's other senior advisers." Gruenbaum, 40, was exiled …