"This is our chance to make history and show the world that the United States is ready for a woman president," said Emily's List president Laphonza Butler. "I believe Kamala Harris is the right leader for this moment, and I'm confident that she will prevail in November."

In a dramatic turn of events, Vice President Kamala Harris is now the presumptive Democratic nominee for president after President Joe Biden's surprise announcement that he will not seek re-election. Harris is wasting no time hitting the campaign trail, with a scheduled speech in the key battleground state of Wisconsin on Tuesday.

The campaign says it has already raised over $100 million since Biden's announcement on Sunday, a staggering sum that reflects the party's eagerness to coalesce behind Harris as its standard-bearer. Democratic leaders, including former House Speaker Nancy Pelosi, have quickly endorsed Harris, though some key figures like Senate Majority Leader Chuck Schumer and current Speaker Hakeem Jeffries have yet to weigh in.

"I'm deeply, deeply grateful to President Biden for his service to this nation," Harris said in remarks at the White House on Monday. "His legacy is unmatched in modern history, and I'm honored to build upon that foundation as we fight to move America forward."

Harris's trip to Wisconsin on Tuesday will be her first major campaign event since becoming the likely Democratic nominee. The campaign is billing it as an opportunity for Harris to connect with voters in a critical swing state and lay out her vision for the country.

"The American people are ready for a new kind of leadership - one that can bring people together and tackle the big challenges we face," Harris said in a statement. "As the first woman president, I will work tirelessly to heal our divisions, strengthen our economy, and protect our democratic institutions."

The speed with which the Democratic party has rallied around Harris underscores the historic nature of her potential nomination. If elected, she would become the first woman to serve as president of the United States, a milestone that many have long awaited.

However, Harris will face a formidable challenge from the Republican nominee, who has yet to be determined. Polls show a tight race, with Harris and the GOP candidate running neck-and-neck in several key battleground states.

Nonetheless, Harris's supporters are hopeful that her unique life story, her experience in government, and her ability to connect with a diverse range of voters will give her an edge in the general election.