On Thursday, all living presidents and spouses attended Jimmy Carter's funeral, except Michelle Obama. Here's why.

As customary with former presidents, Jimmy Carter's funeral has brought a who's who list of national leaders to the National Cathedral in Washington who came to honor to the 39th commander-in-chief on Thursday.

"Former First Lady Michelle Obama is not in attendance at President Carter’s National Funeral Service,” Michelle's rep Crystal Carson added to People. “Mrs. Obama sends her thoughts and prayers to the Carter family, and everyone who loved and learned from the remarkable former president."