President Obama mentioned People with Disabilities explicitly in the 2015 State of the Union address.

 The reference came on Tuesday Jan. 20, 2015 as part of President Obama's description of the values that make us American.

President Obama during the State of the Union address

"I want future generations to know that we are a people who see our differences as a great gift," he said, "that we are a people who value the dignity and worth of every citizen - man and woman, young and old, black and white, Latino, Asian, immigrant, Native American, gay, straight, Americans with mental illness or physical disability. I want them to grow up in a country that shows the world what we still know to be true:  that we are still more than a collection of red states and blue states; that we are the United States of America."

 VIDEO: Full State of Union Address.  White House