President Barack Obama has enthusiastically endorsed Hillary Clinton, but his wife Michelle Obama remains silent since the former first lady claimed the presidential candidacy for the Democratic party. Surprisingly, Michelle Obama made no mention of Clinton’s historic moment for women during the entire White House United State of Women conference, produced by Obama’s senior advisor Valerie Jarrett. The First Lady participated an interview with Oprah Winfrey during the conference which focused heavily on the power of women — but Hillary Clinton was not discussed by Winfrey or Obama.