Hillary and Bill Clinton to Attend Donald Trump Inauguration, Aides Say

Hillary Clinton won the popular vote but lost the Electoral College to Trump.

George H.W. Bush, 92, and Barbara Bush, 91, are "simply not able to attend" the inauguration because of their age, their spokesman Jim McGrath told ABC News.

McGrath noted that they did not attend the 2013 inauguration of Barack Obama either.

ABC News' Shushannah Walshe contributed to this report.