ABC News confirms he has met with her vetting team and canceled fundraisers planned in the Hamptons this weekend.
"The Governor's trip was planned several weeks ago and included several fundraisers for his own campaign committee. His schedule has changed and he is no longer traveling to the Hamptons this weekend," Shapiro Spokesman Manuel Bonder told ABC News.
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Sources say other possible candidates have also met with Harris' VP vetting team and some are also canceling weekend plans.
Whoever Harris chooses to fill out the ticket will appear with her for the first time at an event in Philadelphia on Tuesday. The rally will be held at Temple University's Liacouras Center.
Final phase of search
The search for the vice president candidate now rests in Kamala Harris' hands, a person familiar with the process told ABC News.
The vetting led by former Attorney General Eric Holder and his team at Covington and Burling has concluded and the process turned over to Harris, according to the source.
News that the process has now entered this final stage was first reported by the New York Times.
According to ABC News sources, Harris is planning to meet with some of the contenders in person in Washington, D.C. this weekend, including Shapiro.
Harris secures delegates to become Democratic nominee
Democratic National Committee Chair Jaime Harrison announced Friday that Harris has enough Democratic Party delegate votes in a virtual roll call to officially earn the party's nomination when the roll call ends Monday,
"I am so proud to confirm that Vice President Harris has earned more than a majority of votes from all convention delegates and will be the nominee of the Democratic Party following the close of voting on Monday," Harrison said during a campaign update video call on Friday.
READ MORE: Harris has enough delegate votes to become Democratic presidential nominee, DNC chair says
"You returned your nomination petitions at lightning speed. You made your voices heard. And what you said was clear: We are not going back. We have to send Kamala Harris to the White House," Harrison said to the delegates in a call plagued by audio issues. "You demonstrated your dedication and your commitment to this process."
Convention delegates have been virtually voting by email or phone since 9 a.m. ET on Thursday in a virtual roll call set up by the Democratic National Committee. Delegates still have until Monday at 6 p.m. ET to vote in the nomination process, and Harris -- who joined the call -- highlighted that she would officially accept her nomination then, after the voting period is closed.
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The nomination is a historic one -- if she wins the general election in November against former President Donald Trump, she would be the first woman to serve as president. Harris is already the first woman, Black person and person of South Asian descent to be vice president.
Friday's announcement marks a major milestone of Harris' rapid ascension to the top of the ticket, which comes just 12 days after President Joe Biden ended his campaign for reelection on July 21 -- a remarkable show of unity for a party that just weeks ago stood deeply divided over what to do about the president's candidacy.
With Biden endorsing Harris to succeed him shortly after he announced that he would step aside, support from Democratic donors and elected officials quickly coalesced around the vice president. In the end, Harris was the only competitive candidate that launched a campaign to succeed Biden and the only candidate that received enough delegate signatures to progress to the virtual roll call.
Harris is the first candidate to become the nominee for either major party without winning a single party primary since Hubert Humphrey in 1968. (That year's convention precipitated reforms that led to the modern primary process.)
The DNC initially decided in May to hold a virtual roll call because of uncertainty over deadlines to get on the ballot in Ohio. The state legislature eventually rectified the issue, but the DNC has argued that Republican lawmakers in Ohio are acting in bad faith and that the Democratic candidate needs to be nominated earlier than the convention to avoid legal issues. Ohio leaders have denied this allegation.
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