It was not until January 2017 that Trump's advisers convinced him to acknowledge for the first time that he believed Russians were behind the cyber attacks. The leaders of the nation's intelligence agencies had traveled to New York on Jan. 6 to brief the president-elect on their findings. And in the days that followed, chief of staff Reince Priebus, son-in-law Jared Kushner and other advisers prodded Trump to accept the findings. They argued that he could affirm the validity of the intelligence without diminishing his electoral win.