Al Gore hit the campaign trail for Hillary Clinton today and said that his near miss in the 2000 presidential election is “exhibit A” for why it’s so important to vote, Politico reports.

Said Gore: “Your vote really, really, really counts — a lot. You can consider me as an exhibit A of that group. Now, for those of you who are younger than 25, you might not remember the election of 2000 and what happened here in Florida and across the country. For those of you older than 25, I heard you murmuring just now. But take it from me, it was a very close election/”

Meanwhile, supporters began to chant “You won! You won!”

“Al Gore will start campaigning for Democratic nominee Hillary Clinton, according to individuals briefed on the plan, in an effort to mobilize young voters who see climate change as a key issue,” the Washington Post reports.

“The decision by Gore to plunge into the campaign during the final weeks shows the extent to which Democrats remain concerned that Clinton has yet to connect with many millennials, some of whom are backing third-party candidates this year. The former vice president, a climate activist, will speak about not just Clinton’s plan to address global warming, but also the idea that voting for an independent presidential candidate could deliver the White House to Republicans in the same way that Ralph Nader’s candidacy helped undermine his presidential bid in 2000.”

Al Gore will not attend this week’s Democratic National Convention, Politico reports.

“Gore remains one of the last Democratic Party luminaries not to make a formal endorsement of Hillary Clinton. Betsy McManus, Gore’s communications director, told Politico last fall that he’d wait until a nominee had been formally selected to weigh in. But it’s been more than a month since Clinton sewed up the necessary delegates, and Gore has maintained his silence on the 2016 presidential race.”

“At least four times in the past year, Al Gore has passed up opportunities to endorse Hillary Clinton’s presidential campaign, brushing off questions from People magazine and other media outlets with the admonition that it’s still too early in the Democratic primary process for him to take sides. On Monday, an aide to the former vice president told Politico he’ll stay on the sidelines until his party has selected its nominee.”

Al Gore declined to endorse Hillary Clinton for president when asked about her prospects, the New York Post reports.

Said Gore: “I wouldn’t refuse to answer that question, I would try to cleverly dodge that question. I would say it’s actually too early.”

Ezra Klein: “To many Democrats, the fight the party needs is clear: Hillary Clinton vs. Elizabeth Warren. But the differences between Warren and Clinton are less profound than they appear. Warren goes a bit further than Clinton does, both in rhetoric and policy, but her agenda is smaller and more traditional than she makes it sound: tightening financial regulation, redistributing a little more, tying up some loose ends in the social safety net. Given the near-certainty of a Republican House, there is little reason to believe there would be much difference between a Warren presidency and a Clinton one.”

“The most ambitious vision for the Democratic Party right now rests with a politician most have forgotten, and who no one is mentioning for 2016: Al Gore. Gore offers a genuinely different view of what the Democratic Party — and, by extension, American politics — should be about.”