Trump’s campaign on Saturday said in a statement it had been hacked.
Fresh off a newly minted Democratic ticket, Vice President Kamala Harris and her running mate, Minnesota Gov. Tim Walz, are set to go on tour, hitting several battleground states in five days -- alongside them and mirroring their schedule state by state is Republican vice presidential nominee Sen. JD Vance.
On Monday, Harris introduced Walz to a fired-up crowd in Philadelphia; Vance was also in Pennsylvania on Monday. The candidates will campaign next in Wisconsin and Michigan.
President Joe Biden spoke with Vice President Kamala Harris on Monday morning before she announced that Gov. Tim Walz would be her running mate, the White House said in a statement.
"The President also spoke with Governor Walz to congratulate him on his selection," White House Senior Deputy Press Secretary Emilie Simons said in a statement.
-ABC News' Justin Gomez
President Joe Biden, who changed his X header to match the new Harris-Walz logo, praised Vice President Kamala Harris' pick of Gov. Tim Walz as a running mate, calling him "a strong, principled and effective leader."
"The first major decision a party nominee makes is their choice for Vice President. And Kamala Harris has made a great decision in choosing Governor Tim Walz to be her running mate," he said in his statement on X.
"The Harris-Walz ticket will be a powerful voice for working people and America's great middle class. They will be the strongest defenders of our personal freedoms and our democracy. And they will ensure that America continues to lead the world and play its role as the indispensable nation," the president added.
Biden called on all Americans to rally behind the Harris-Walz ticket.
"Every generation of Americans faces a moment where they are asked to defend American democracy. That moment is now," he said.
-ABC News' Fritz Farrow, Gabriella Abdul-Hakim and Will McDuffie
Senate Majority Leader Chuck Schumer said in a statement that Gov. Time Walz is a "great choice" to be Vice President Kamala Harris' running mate.
"Let's get to work! There's no doubt the Harris/Walz ticket will lead us to victory in November and build a future Americans can be proud of," he said in a post on X.
-ABC News' Lauren Peller
Vice President Kamala Harris told Minnesota Gov. Tim Walz in a phone call this morning that they are the "underdogs" in this race, but she's confident that together they have a winning message on reducing costs for the middle class and protecting freedom, a source close to the process told ABC News.
The source added that chemistry was a big piece of Harris' decision to select Walz.
Harris notified her team this morning that she wanted to inform Walz and the other candidates, the source said, adding that the final decision and execution was done Tuesday morning.
-ABC News' Selina Wang
