"In the face of impossible odds, people who love their country can change it." —President Obama, Aug. 28, 2013
President Obama spoke from the steps of the Lincoln Memorial on Wednesday to commemorate the 50th anniversary of Dr. Martin Luther King, Jr.'s "I have a dream" speech. It was a reminder of how our country has changed in five decades, but it was also a call to action for the work we have left to do. Watch the President's speech.
See more tweets, photos and videos from the "Let Freedom Ring" ceremony in the slideshow below.