US media stories indicated Ms Harris had not determined her working mate till Tuesday morning.
Her marketing campaign vetted a couple of dozen folks over the previous two weeks.
Asserting the choice, Ms Harris shared particulars of Mr Walz’s background “each as a result of it is spectacular in its personal proper, and since you see in no unsure phrases the way it informs his document”.
“As a governor, a coach, a instructor, and a veteran, he is delivered for working households like his personal,” she wrote.
“We’re going to construct a terrific partnership. We begin out as underdogs however I consider collectively, we will win this election.”
In the course of the vetting course of, Mr Walz drew enthusiastic assist from pro-labour teams and his celebration’s progressive wing.
He additionally gained consideration together with his description of Mr Trump, Mr Vance and ‘Make America Nice Once more’ Republicans as “bizarre”.
That characterisation has since been adopted by a number of Democrats, together with Ms Harris. Mr Trump not too long ago responded, saying “they’re the bizarre ones”.
Trump’s marketing campaign slammed Mr Walz as a “West Coast wannabe” who “has spent his governorship attempting to reshape Minnesota” within the picture of a left-wing California.
“If Walz will not inform voters the reality, we’ll: similar to Kamala Harris, Tim Walz is a dangerously liberal extremist, and the Harris-Walz California dream is each American’s nightmare,” press secretary Karoline Leavitt stated.
A supply near the vetting course of informed CBS, the BBC’s US information accomplice, that Mr Walz was chosen for his expertise and document of accomplishment in an govt function. Different elements included a compelling biography, his capability to be a robust messenger in opposition to Trump and Mr Vance, and his robust rapport with the vice-president.
Fellow running-mate contenders in addition to exterior curiosity teams have rallied behind his choice.
Gun security teams hailed his evolution on the difficulty after the 2018 Parkland, Florida college capturing, whereas Voters of Tomorrow, a youth voter mobilisation group, stated it was “excited to battle for younger Individuals alongside the Harris-Walz Administration”.
President Joe Biden stated in an announcement that the 2 “would be the strongest defenders of our private freedoms and our democracy”.
“They’ll be sure that America continues to guide the world and play its function because the indispensable nation.”
As the present two-term governor of Minnesota, Mr Walz has overseen one of the productive legislative intervals in state historical past.
With unified management of the state legislature, Democrats have enshrined abortion rights, strengthened gun legal guidelines, created new paid household and sick go away insurance policies, and carried out a sequence of different progressive wish-list objects.
Republicans criticise him for his response to the Covid-19 pandemic and his sluggish deployment of the Nationwide Guard to take care of violence within the aftermath of George Floyd’s homicide in 2020.
Earlier than getting into the governor’s workplace, Mr Walz represented a Republican-leaning district within the US Congress for 12 years.
He received that seat in 2006 – the one Democrat to have received within the principally rural district over the previous three a long time.
Mr Walz is a local of rural Nebraska and the son of a college administrator and a stay-at-home mom.
He grew up farming and looking and served within the Military Nationwide Guard for twenty-four years after becoming a member of aged 17.
The younger Mr Walz additionally taught secondary college pupils – first for one 12 months in China, then in Nebraska.
His spouse, Gwen Whipple, a fellow instructor, drew him to her native Minnesota, the place he taught social research and geography and coached American soccer.
He has described his entry into politics as nearly unintended. He stated he volunteered for John Kerry’s 2004 presidential marketing campaign after being angered by an incident during which two of his pupils had been turned away from a George W Bush marketing campaign occasion.