"[Footnote 36, to the above quote] Donald Trump News Conference, Doral, Florida, C-SPAN (July 27, 2016). Within five hours of Trump's remark, a Russian intelligence service began targeting email accounts associated with Hillary Clinton for possible hacks. See Volume I, Section III, supra. In written answers submitted in this investigation, the President stated that he made the "Russia, if you're listening" statement "in jest and sarcastically, as was apparent to any objective observer." Written Responses of Donald J. Trump (Nov. 20, 2018), at 13 (Response to Question II, Part (d))."
January 1, 1970
https://en.wikiquote.org/wiki/Mueller_Report