This president has done a huge amount to bring race relations in this country to a different place, which is why the far right has become so vicious in attacking him and lying about him. They know he threatens their politics of division and rule. He has also directly addressed the Muslim world, telling some hard truths, and played a small role in evoking a similar movement of hope and change in Iran, and finally told the Israelis to stop cutting their nose off to spite their face.
I like Shimon Peres' statement, reprinted in a useful compendium of world reaction at the Lede:
“Very few leaders if at all were able to change the mood of the entire world in such a short while with such a profound impact. You provided the entire humanity with fresh hope, with intellectual determination, and a feeling that there is a lord in heaven and believers on earth.” Mr. Peres, who won the peace prize with Yitzhak Rabin and Yasir Arafat in 1994 following the Oslo Accords, added: “Under your leadership, peace became a real and original agenda. And from Jerusalem, I am sure all the bells of engagement and understanding will ring again. You gave us a license to dream and act in a noble direction.”