"You did it all with such grace and class and cool that you made the hardest job in the world look like a walk in this beautiful park." (opens in new tab)

Said Michelle Obama, as "Mr. Obama looked down and wiped away tears."She's quoted in (NYT).Biden was there too, bearing with unbearable sorrow: @nbcnews Former President #Biden and former first lady Michelle Obama wipe their eyes during Jennifer Hudson's performance at the opening of the #Obama Presidential Center in #Chicago ♬ original sound - nbcnews Here's a longer clip, with lots more of Jennifer Hudson:And here's Stevie Wonder: