MADISON, WISC. -- More than 40 people filed into a converted coffee shop on a recent Saturday morning in Madison, Wisconsin, to organize in a west-side neighborhood for U.S. Vice President Kamala Harris.

A month ago, fewer than 10 people showed up for a similar event for U.S. President Joe Biden. Some told organizers they were no longer willing to knock on doors in Wisconsin's famously liberal state capital.

The excitement among loyal Democrats lit by Harris replacing Biden has enlivened the party's base in Wisconsin, particularly in areas where the vice president must run up big margins to carry a swing state that Biden flipped from Republican Donald Trump.

鈥淜amala Harris is the defibrillator that the Democratic Party needed,鈥 said John Anzalone, who was Biden's chief campaign pollster in 2020.

Dane County, which includes Madison, is the fastest-growing county in the state, fueled by the combination of the University of Wisconsin and the state capital鈥檚 workforce.

In addition to Dane County鈥檚 growth, Democratic turnout here and Democratic candidates鈥 percentage of the vote have also increased. Biden won 75 per cent of the vote in 2020, beating Trump by 181,000 votes in the county while carrying the state by fewer than 21,000.

But in the last month of Biden鈥檚 campaign, voters answering their doors in Madison's most robustly Democratic neighborhoods were talking more about whether the party would have a competitive presidential nominee than their desire to volunteer, Wisconsin Democratic Party Chairman Ben Wikler said.

鈥淭hat created a world where volunteers started to fall off. The conversations at the doors in the final weeks left people worried rather than energized,鈥 Wikler said. 鈥淭hat engine felt like it was sputtering. And now the engine is roaring.鈥

Wisconsin Republican Party Chairman Brian Schimming said in a press conference Tuesday that Harris was experiencing 鈥渁 little honeymoon."

鈥淏ut I don鈥檛 think it鈥檚 going to last," he said.

Further, he said, Biden was suffering 鈥渃lear across the state in every Democratic stronghold鈥 to the point Democrats 鈥渉ad nowhere to go but up.鈥

According to interviews with more than a dozen Madison Democrats, Harris' attention to specific party priorities, in addition to her younger age and livelier style, have helped restore their enthusiasm.

Daniel Zaydman, 24, pointed to Harris' March public call for a cease-fire in the Israel-Hamas war, a conflict that has divided the Democratic base. Biden has also pushed for a ceasefire while continuing to back weapons shipments to Israel as it conducts a war in Gaza that has resulted in at least 39,000 Palestinian deaths.

鈥淪he had come out against the genocide in Gaza, not just in recent days but months ago," said the former state legislative aide, who noted that he is Jewish. 鈥淎t the time, I was like, wow, the vice president is ahead of the president on this.

鈥淪he had been in Biden's shadow, and no one my age group liked his position on Gaza," he said. 鈥淎nd that has been a huge sticking point with voters in my age group.鈥

For Sam Heesacker, Harris is noticeably more vocal and convincing in her advocacy of abortion rights, a top priority for the 28-year-old University of Wisconsin graduate student in education curriculum. Biden struggled during his debate with Trump to complete an answer about the Supreme Court striking down Roe v. Wade, which had guaranteed a national right to abortion. Trump nominated three of the justices who voted to overturn Roe.

鈥淪he's more progressive than Biden, calling it what it is: Reproductive freedom,鈥 she said, taking a break from studying at a coffee shop on Madison's bustling State Street.

Shea Head felt a new sense of optimism, noting Harris鈥 visibility supporting the priorities of the LGBTQ2S+ community.

The 59-year-old education researcher said from a corner seat in a west-side cafe that she had read last spring where Harris had spoken about the 20-year anniversary of same-sex marriages being performed in California. Head recalled Harris鈥 more public profile on the issues after seeing the candidate make a voter registration plug on 鈥淩uPaul鈥檚 Drag Race All Stars鈥 last week.

鈥淪he was on talking about gay rights and trans rights. Obviously, she knows in that situation she鈥檚 speaking to a population that knows our rights are in danger,鈥 Head said. 鈥淪he鈥檚 speaking to me in a way that Biden wasn鈥檛, or maybe couldn鈥檛 as convincingly.鈥

The observations reflect broader enthusiasm toward Harris among Democrats nationally.

An AP-NORC poll conducted after Biden withdrew from the race found that about eight in 10 Democrats would be somewhat or very satisfied if Harris became their party's nominee. That's a big change from another AP-NORC poll conducted before Biden dropped out, which found that only 37 per cent of Democrats were very or somewhat satisfied that he was the Democratic Party鈥檚 likely nominee for president.

Strategists in both parties point to other college towns in swing states that they think Harris will invigorate younger adults and traditional liberals. In Michigan, there鈥檚 Ingraham County, home of Michigan State University and the Democratic-heavy capital city of Lansing, and Washtenaw County, home of the University of Michigan. Biden won them with 65 per cent and 72 per cent of the vote respectively enroute to carrying Michigan by fewer than three percentage points in 2020.

Though he lost North Carolina by fewer than two percentage points, Biden won 67 per cent of the vote in Wake County, a booming hub around the capital Raleigh and the region鈥檚 Duke University, North Carolina State University and the University of North Carolina.

Anzalone, Biden's former pollster, said there had been fear within the party before Biden decided not to run that there was going to be a universe including younger voters who might not vote or consider going to third-party candidates.

鈥淚 was worried even loyal Democratic voters might feel apathetic about their choices," 38-year-old Leah Kechele, a nursing instructor, said between Zoom meetings at a popular Madison cafe. 鈥淚 think she can fire them up.鈥

Associated Press polling editor Amelia Thomson-DeVeaux in Washington contributed to this report.