Martin Luther King Jr. Day: How your favorite Political Girls spent the day

Jill Biden and Vice President Joe Biden along with their granddaughter, Natalie Biden wrote letters to soldiers in their hometown of Wilmington, Del.
California Attorney General Kamala Harris spoke at an annual Martin Luther King Jr. breakfast in Los Angeles, CA.

Senator Kirsten Gillibrand attended the 25th annual Brooklyn tribute to Martin Luther King Jr at the BAM Howard Gilman Opera House in Brooklyn, New York.

"Martin's Message and his Meaning were so powerful..." Coretta Scott King

"So when my husband was no longer there, then I could continue in that cause, and I prayed that God would give me the direction for my life....But then I finally determined that it was the King Center, because Martin's message and his meaning were so powerful....So I felt that my role, then, was to develop an institution, to institutionalize his philosophy, his principles of nonviolence and his methodology of social change, and that's what I have spent my years doing." - Coretta Scott King

Happy Martin Luther King, Jr. Day!

Obamas attend Metropolitan AME Church for MLK Jr. Day

President Barack Obama, First Lady Michelle Obama, and daughters Sasha and Malia (hidden behind other parishioners) sing during church services at Metropolitan African Methodist Episcopal Church in Washington, D.C., Sunday, Jan. 16, 2011, 2010. (Official White House Photo by Pete Souza)

Updated with new photos