What is the font used in the www.whitehouse.gov Presidential portraits?
The font is: Hoefler Text Source
I inspected the font element in order to find this. It said:
font-family: "Hoefler Text A","Hoefler Text B",Georgia,"Times New Roman","DejaVu Serif",serif;
Downloading the font would be violating the font usage subscription service they have set up for webfonts.