Political Commentary
As in past years, most view the event as a politicized celebration.
Bjoern Hoecke, a leader in the populist Alternative for Germany party, called a Berlin memorial "a monument of shame."
WHAT'S HAPPENING
The New Hampshire Democratic Party chair is hoping experience beats charisma.
Obama called for democratic participation and greater understanding, while Trump attacked the media and Hillary Clinton.
"Democracy can buckle when we give in to fear."
History after "the end of history."