Joe Biden (1942) 47th Vice President of the United States (in office from 2009 to 2017)
To Jinping Xi (2011-2012), as quoted in "Born Red: How Xi Jinping, an unremarkable provincial administrator, became China’s most authoritarian leader since Mao." http://www.newyorker.com/magazine/2015/04/06/born-red (6 April 2015), by Evan Osnos, The New Yorker. <br class="br">2010s