1997: the President of the United States was born in 1946. (Bill Clinton, August 19, 1946)
2007: the President of the United States was born in 1946. (George W. Bush, July 6, 1946 )
2017: the President of the United States was born in 1946. (Donald J. Trump, June 14, 1946)
and hopefully!
2027: the President of the United States was born in 1946.