Sen. Al Franken used a prime time speech at the Democratic Nation Convention in Philadelphia to jab Republican presidential nominee Donald Trump and to urge delegates to work hard to elect Hillary Clinton.

Franken took aim at Trump with a series of jokes about Trump University.

“Sure he’s scammed a lot of people,” Franken said. “But did you know that Trump University’s school of ripping people off is ranked second in the nation, right behind Bernie Madoff University? That is no mean feat.”

The riff went on for about half of the roughly 8 minute speech.

Then Franken took a more serious tone to make his pitch for Clinton, who will officially become the Democratic presidential nominee this week. Franken stressed that he has known Clinton for nearly 25 years and is proud to call her a friend.

“I’ve never met anyone smarter, tougher or more ready to lead us forward,” he said.

Franken urged delegates to work hard on behalf of Clinton in the time between the end of the convention and the general election.

In a shout out to the Minnesota delegation, Franken said they were literally the reason he was on the DNC stage and not giving the speech into his bathroom mirror.

Philadelphia — On the day Bernie Sanders addresses the Democratic National Convention, his Minnesota delegates are feeling burned by the party’s fresh problems with leadership and leaked emails.

Those delegates, who make up a majority of Minnesota’s contingent, are sounding resigned to the pending nomination of Hillary Clinton. But they’re also pledging to keep Sanders political “revolution” moving forward.

Minnesota Sanders delegates met privately on Monday at their suburban hotel to discuss strategy. They later headed to another meeting downtown with Sanders and delegates from all 50 states where some booed when Sanders called on them to back Hillary Clinton.

Rod Halvorson of St. Paul said he and other Minnesota Sanders delegates voted to form a new statewide organization aimed at electing DFL candidates that share their politically progressive views. He said the 46 pledged Sanders delegates will lead the effort.

“We are the only official organization of Bernie Sanders in Minnesota,” he said. “So, we’re going to start to continue that revolution that he wants by having an organization for him ready to go in Minnesota.”

Sanders backers remain angry at the disclosures from leaked Democratic National Committee emails showing party leaders favoring Clinton over Sanders. The revelations led to the subsequent resignation of DNC Chair Debbie Wasserman Schultz.

The emails prove what Sanders long contended about a “rigged” political system, said Keith McLain, a Sanders delegate from Byron, Minn. He said he’s pleased with the party leadership change but that it came too late. Still, he added that he’s excited about the convention and is eager to hear Sanders speak about the future.

“Political revolutionaries tend to sometimes go to the wayside,” McLain said. “It’s up to the people of the revolution and the leader itself to continue doing all this fantastic work that he’s shown us that we can do.”

Michael Gibino, a Sanders delegate who got some attention by running from St. Paul to Philadelphia, believes Sanders and his supporters will continue to have an impact.

“This revolution is still going on. It’s starting. We’re still building the foundation,” he said. “No matter what happens with the nomination process, no matter what happens in the general election, we’re all in this to fight beyond the general election and this election cycle and in local politics as well.”

Party leaders are stressing unity this week in advance of Clinton officially becoming the Democratic nominee for president. It’s a message they expect to hear from Sanders too.

Weekend negotiations to resolve party platform issues and consider changes to the super delegate system show that Clinton and Sanders are working closely to bring Democrats together this week, said Minnesota DFL Chair Ken Martin.

Martin, a super delegate supporting Clinton, said he expects Sanders to emphasize the point by using a Clinton slogan.

“We are stronger together as a party than divided,” he said. “We have 106 days left. We have to come out of this convention ready to take the fight to Donald Trump.”

Heather Adams spoke with a Mason City, Iowa, resident in January as she went door-to-door volunteering for Sanders. Mark Zdechlik | MPR News

Philadelphia — I first met Heather Adams in January as she knocked on doors across parts of frozen Iowa for Bernie Sanders. She was crunching her way through snow and ice in Mason City. It was so cold, it was hard for her to even jot down notes of who was a supporter and who was undecided.

Adams, though, was undeterred.

“I think it’s worth it because I think Bernie Sanders is right for our country,” she said then. “He wants everybody to have health care and free college and he wants to get the corporate money out of politics. I don’t think that corporations should be running our country.”

Adams is in a much warmer place this week as a delegate to the Democratic National Convention.

The 39-year-old middle school teacher from the Twin Cities said it hurt when Sanders endorsed Clinton. But she wasn’t crushed, and she said she feels the revolution Sanders started is alive and will live on in other races.

“I feel good to be here. I’m excited,” she said of the Philadelphia convention. “The message seems to be party unity. But I don’t think they’re forcing us to support Hillary. I think that they understand that we need a little time.”

Back in January, Sanders was surging and Hillary Clinton’s lead in the polls was vanishing. Sanders’ rallies would get even bigger after his neck-and-neck finish with Clinton in the Iowa caucuses. A month after Iowa, Sanders handily defeated Clinton in the Minnesota caucuses.

But he just couldn’t catch Clinton in the delegate count.

The concerns Adams voiced bout Clinton in the Iowa winter still linger in the Philadelphia summer.

“It’s the money,” she said. “Bernie didn’t take any corporate donations. He took small donations from people like me. And she just had the events with the big money behind her, and I couldn’t connect to that.”

Adams says even if she comes around and decides to vote for Clinton, that’s about all she’ll do for the former first lady, senator and secretary of state.

“Bernie was my guy. He was my candidate. I put all of my heart and soul into that, and I just can’t envision doing the same for her.”