Home US President Barack Obama speaks to Marian Robinson (L) , mother of First Lady Michelle Obama (R), as daughters Sasha (2nd L) and Malia (2nd R) look on during the 57th Presidential Inauguration ceremonial swearing-in at the US Capitol on January 21, 2013 in Washington, DC. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP via Getty Images) US President Barack Obama speaks to Marian Robinson (L) , mother of First Lady Michelle Obama (R), as daughters Sasha (2nd L) and Malia (2nd R) look on during the 57th Presidential Inauguration ceremonial swearing-in at the US Capitol on January 21, 2013 in Washington, DC. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP via Getty Images)

US President Barack Obama speaks to Marian Robinson (L) , mother of First Lady Michelle Obama (R), as daughters Sasha (2nd L) and Malia (2nd R) look on during the 57th Presidential Inauguration ceremonial swearing-in at the US Capitol on January 21, 2013 in Washington, DC. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP via Getty Images)

US President Barack Obama speaks to Marian Robinson (L) , mother of First Lady Michelle Obama (R), as daughters Sasha (2nd L) and Malia (2nd R) look on during the 57th Presidential Inauguration ceremonial swearing-in at the US Capitol on January 21, 2013 in Washington, DC. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP via Getty Images)

CHARLOTTE, NC – SEPTEMBER 06: First lady Michelle Obama (L) applauds with her mother Marian Robinson (R) during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Win McNamee/Getty Images)