Trump, Biden at Penn graduation as parent, grandparent

Republican presidential candidate Donald Trump attended his daughter Tiffany Trump's graduation ceremony, accompanied by his wife Melania Trump, second right, and former wife, Marla Maples, second left, Sunday, May 15, 2016, at the University of Pennsylvania in Philadelphia. (AP / Matt Rourke)

PHILADELPHIA -- Both Donald Trump and Joe Biden have attended a graduation ceremony at the University of Pennsylvania, but not on the stage as politicians -- they were in the audience as parent and grandparent.

The Republican presidential candidate's daughter Tiffany Trump and the vice-president's granddaughter Naomi Biden were among the 1,500 students who graduated Sunday evening from the School of Arts and Sciences. Donald Trump graduated from Penn's Wharton School of Business in 1968.

Biden was seen embracing his granddaughter at the ceremony. He was accompanied by his wife, Jill Biden.

Trump was accompanied by his wife, Melania Trump, and his former wife, Marla Maples.

Trump and Biden aren't expected to attend Monday's main graduation ceremony for the Ivy League school.