Joe Biden
Joe Biden
PHOTO: Colgate University
Now playing
02:15
Biden: I regret not running for president
PHOTO: CNN
Now playing
04:34
'My boys saved me.' Joe Biden reflects on family tragedy
president in waiting clip 1_00001108.png
president in waiting clip 1_00001108.png
Now playing
00:37
Biden recalls VP role in new documentary
Biden faith
Biden faith
PHOTO: CNN
Now playing
03:33
How Biden's faith helped him cope with the death of his son
ramh emanuel
ramh emanuel
PHOTO: CNN
Now playing
05:48
Rahm Emanuel: Joe was first to call after my father passed
PHOTO: CNN
Now playing
04:34
'My boys saved me.' Joe Biden reflects on family tragedy
jill biden gloria borger doc
jill biden gloria borger doc
PHOTO: CNN
Now playing
02:20
'I had to be 100% sure.' Jill Biden reflects on decision to marry Joe
PHOTO: Edward M. PioRoda/CNN
Now playing
01:39
Joe Biden on Elizabeth Warren: She attacked me
PHOTO: CNN
Now playing
01:42
Biden: Helping with grief gives me a sense of purpose
PHOTO: Edward M. PioRoda/CNN
Now playing
01:45
Biden: Trump one of most corrupt people to be president
PHOTO: CNN
Now playing
01:51
Joe Biden on impeachment: House has no option
joe biden bash dnt 01
joe biden bash dnt 01
PHOTO: CNN
Now playing
05:09
Biden: Trump 'gigantic impediment' to US moving forward
Now playing
00:37
Biden shocked by reporter's question: Are you joking?
PHOTO: CNN
Now playing
02:44
Biden responds to Warren's comments on 'angry' charge
Now playing
01:29
See Biden's response to potential Bloomberg run

Story highlights

The former vice president said the deciding factor was the death of his son, Beau

Biden said he planned on running for president

(CNN) —  

Former Vice President Joe Biden believes he could have been elected president had he decided to run last year.

“The answer is that I had planned on running for president, and although it would’ve been a difficult primary, I think I could’ve won,” Biden said Friday during a Q&A interview at Colgate University. “I don’t know. Maybe not, but I thought I could’ve won.”

The former vice president said the deciding factor was the death of his son, Beau, who passed away after battling brain cancer in May 2015. Biden said he “lost part of his soul” when Beau died, and called him the “finest young man” he had ever known in his life.

“I don’t regret not running in the sense that it was the right decision for my boy, for me, for my family at the time,” Biden said. “But do I regret not being president? Yes.”

Biden said although he thought it would have been a difficult primary challenging Hillary Clinton, he said data showed he could have defeated President Donald Trump.

“I didn’t run because no man or woman should announce for President of the United States unless they can look the public in the eye and say, ‘I promise you I’m giving 100% of my attention and dedication to this effort,’” Biden said. “I knew I couldn’t do that.”

In an interview with CNN’s Jake Tapper in December, Biden, 74, wouldn’t rule out the prospect of running for the presidency in 2020 if he thinks issues of economic fairness aren’t being voiced. Earlier that month, however, he said he had “no intention of running.”

This story has been updated.