PHILADELPHIA (WPVI) --Vice President Joe Biden slammed Republican presidential nominee Donald Trump, heartily endorsed Hillary Clinton, and emotionally remembered his eldest son, Beau, who was lost to cancer.
Biden says "no major party nominee in the history of this nation has ever known less or been less prepared to deal with our national security."
The vice president tells the Democratic National Convention that Trump - the GOP presidential nominee - offers policies that are more in line with the United States' adversaries.
FULL VIDEO: Joe Biden speaks to the DNC
Biden said Trump backs "torture" and "religious intolerance." Biden said that Trump "betrays our values" and makes it harder for the United States to defeat Islamic State militants.
Biden says the billionaire real estate mogul "has no clue about what makes America great."
The vice president told the Democratic National Convention in Philadelphia that he's known as "middle-class Joe" in the nation's capital - and he says that's not a compliment.
He says it actually means ... "you're not sophisticated."
Biden vouched for Hillary Clinton, saying her election will have a major impact on young girls. He says when she walks into the Oval Office as president, "it will change their lives."
Biden paid tribute to his late son Beau, who introduced him at the 2008 Democratic National Convention.
Beau Biden went on to become attorney general of Delaware. He died in 2015 after a battle with cancer.
The vice president told delegates that the nation got to see "what an incredibly fine young man" Beau Biden was when he nominated his father for vice president.
Biden says his challenge in dealing with his son's death makes him appreciate "the unbreakable spirit of the people of America" who deal with problems every day with "so much less support," but still "put one foot in front of the other."
The vice president was considered to be a potential 2016 presidential candidate, but cited his son's death as a reason he wasn't up for a national campaign.