Here’s the full poll:
http://harvardharrispoll.com/wp-content/uploads/2017/03/HCAPS-Harris-Poll-March-Wave-Limited-Top-Line_03.17.2017.pdf
It includes favorability #s (among all voters) for Sanders, Warren, Trump, and various foreign leaders. Here are the fav/unfav % #s:
Pope Francis 71/19% for +52%
Justin Trudeau 64/17% for +47%
Theresa May 54/13% for +41%
Shinzo Abe 46/11% for +35%
Angela Merkel 51/18% for +33%
Bernie Sanders 56/33% for +23%
Benjamin Netanyahu 46/25% for +21%
Narendra Modi 25/13% for +12%
Enrique Pena Nieto 36/31% for +5%
Elizabeth Warren 37/34% for +3%
Donald Trump 44/51% for -7%
Xi Jinping 17/42% for -25%
Hassan Rouhani 8/50% for -42%
Vladimir Putin 17/70% for -53%
Kim Jong-un 5/83% for -78%
Note that for all of the foreign heads of government, the pollster tells the respondent which country they lead. E.g., Trudeau is described as “Justin Trudeau, the leader of Canada”.
I wonder what a Pope Francis vs. Kim Jong-un electoral map would look like. 
I'm shocked to not see Duterte on the list.
