“Holy, holy, holy” they sang at the Church of St Timothy in Blaine, Minnesota.

But the congregation is struggling to comprehend an act of evil – the brutal murder of one of their own.

Melissa Hortman grew up here. The former state speaker and her husband Mark were shot dead in their home on Saturday morning.

Her friend and party colleague, Erin Koegal, was among those attending mass.

“It still feels like a bad dream. I woke up this morning and was like, okay, so that was real,” she said.

“It’s hit me in waves, the grief, and the anger, and the sadness. She was a leader, a true definition of a leader.

“I’ve never known our party without Melissa as the leader and so I can’t, I don’t even know how we’re going to go forward as a caucus without her.”

State senator John Hoffman and his wife Yvette had already been shot and wounded.

Police sent to check on his colleague, Melissa Hortman, didn’t get there in time.

They named the suspect as Vance Boelter, a 57-year-old former Christian missionary.

Minnesota Governor Tim Walz called it a “politically motivated murder”.

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Friends of Ms Hortman have told Sky News that her two children feared for their mother’s life after reading divisive rhetoric directed at her online.

Matt Norris, another political colleague of Ms Hortman, was also at church, reflecting on the rise of political violence in America.

“We’ve going to have to do some serious introspection as a state, as a country, and figure out how do we get beyond this,” he said.

“How have we been laying the seeds that have led to horrific acts of violence against public servants like this?

“And it’s going to be incumbent upon us as leaders to set a different tone, to set a different direction for our state and our country so that horrific tragedies like this never occur again.”

But there’s no sign of division at the State Capitol Building, where flags fly at half-mast and flowers are being left in tribute.

This is a community united in grief and in its hope for an end to gun violence in America.

Reading between the lines of President Trump’s social media posts is an art, not a science.

But whether by intention or not, there is always insight in his posts. His Truth Social words reacting to the Israeli attack on Iran are intentionally ambiguous.

When was he told by Israel that they would strike Iran? Did he give them a green light, or was it more amber?

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Was his insistence, as recently as 48 hours ago, that a strike would “blow” the chances of a deal with Iran actually just a ruse to afford Israel the element of surprise? That’s what the Israelis are claiming.

Clearly, President Trump does not want to give the impression that his ‘don’t strike’ advice was ignored by Netanyahu.

His social posts are filled with enough ambiguity to allow him to maintain his good cop stance alongside Netanyahu, the bad cop: “I gave Iran chance after chance to make a deal. I told them, in the strongest of words, to ‘just do it’…”

Trump’s ‘art of the deal’, whether it be in real estate or nuclear weapon negotiations, requires unpredictability and ambiguity.

Both of those, as it happens, are useful to hide ineptitude too. The line between diplomatic masterstroke and disastrous diplomacy is thin.

The president is claiming that the Israeli attacks make a deal more, not less, likely because of the pressure Iran will now be under.

Maybe, but many regional watchers are very unconvinced.

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An alternative path to negotiations for Iran would be to go fully down the North Korea route, comforted in the knowledge that China – as a big Iranian oil customer – and Russia – as a weapons customer – will be on side.

Trump may think that the pressure of bombardment will force Iran to heel. But the other pressure the Iranian supreme leader is under is the pressure of survival.

Self-preservation necessitates the Iranian response that we’re now seeing before any prospect of renewed negotiations can come.

The Israelis and the Americans are calculating that Iran and its proxies are now sufficiently degraded, and so the response will be limp and containable.

They might be right in terms of conventional attacks, but asymmetrical operations are another fear – against Israeli targets or more broadly, softer Western targets in the region or beyond.

Step back from the chaos of the past 24 hours. The broader picture here is regime change.

Netanyahu said as much in his Friday speech, calling for an internal uprising. He ignored history – which suggests people tend to rally round their flag – but more than that, that foreign air strikes alone don’t work.

Look at Libya in 1986, Iraq in 1991, or Yugoslavia in 1999.

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Netanyahu wants to go further. Will he take out the supreme leader? Trump does not want another full-scale conflict in the Middle East. Of all the things he is accused of being, a hawkish warmonger he is not.

But there are plenty of politicians on Capitol Hill – on both sides of the divide – who support regime change in Iran.

I was at an event in Congress in December organised by Iranian exiled opposition leaders. I was struck by the cross-party support for regime change in one form or another.

Israel this weekend announced that its military had achieved total air superiority from western Iran to the capital Tehran. That’s remarkable.

Could Trump be persuaded to pursue regime change? Peace, eventually, through strength? His motto adapted.

We are at yet another unsettlingly tense moment for the region.

A manhunt is under way after a US politician and her husband were shot dead in their home in a “politically motivated assassination” – and another politician and his wife were also shot.

Minnesota state representative Melissa Hortman and her husband were killed at their home, Tim Walz, the governor of Minnesota, confirmed.

State senator John Hoffman and his wife were also shot in their home but are expected to survive. The senator, according to officials, is in a stable condition after emergency surgery.

Authorities have confirmed that the suspect they are looking for is 57-year-old Vance Boelter – who, in a press conference, was described as a 6ft 1in white male, with brown hair and brown eyes.

Members of the public have been urged not to approach him as he may be armed.

The suspect was reportedly posing as a police officer, and officials said the alleged attacker escaped after an exchange of gunfire.

Both politicians are members of the Minnesota Democratic-Farmer-Labor Party.

US President Donald Trump, in a statement, said: “I have been briefed on the terrible shooting that took place in Minnesota, which appears to be a targeted attack against State Lawmakers.

“Our Attorney General, Pam Bondi, and the FBI, are investigating the situation, and they will be prosecuting anyone involved to the fullest extent of the law.

“Such horrific violence will not be tolerated in the United States of America.”

Authorities have urged residents of the Champlin and Brooklyn Park areas to stay in their homes.

In an earlier Facebook post, Mr Walz said: “I’ve been briefed this morning on an ongoing situation involving targeted shootings in Champlin and Brooklyn Park.

“The Minnesota Department of Public Safety and local law enforcement are on the scene. We will share more information soon.”

At a subsequent news conference, Mr Walz said: “We must all, in Minnesota and across the country, stand against all forms of political violence.

“Those responsible for this will be held accountable.”

He has also urged those in Minnesota not to attend political rallies until the suspect is caught.

Police evacuated the Texas State Capitol and grounds in Austin ahead of an anti-Trump protest on Saturday – citing a credible threat to politicians.

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Post-mortem examinations will be conducted to determine the extent of their injuries.

However, it is clear that both Ms Hortman and her spouse died from gunshot wounds, Drew Evans, superintendent of the Bureau of Criminal Apprehension, said.

Ms Hortman, a mother of two, was first elected in 2004 – and was the top house Democratic leader in the state legislature. She also served as speaker of the Minnesota House of Representatives.

Mr Hoffman, also a Democrat, was first elected in 2012 – and ran a consulting firm called Hoffman Strategic Advisors.

Hakeem Jeffries, House Democratic leader, has described the shootings as “deeply disturbing” on X, adding that “violence is never acceptable”, and that he is “praying hard” for the victims.

Former Arizona representative, Gabby Giffords, described her friend Ms Hortman as a “true public servant”, who “dedicated her life building a better, safer Minnesota”.

Nancy Pelosi, former speaker of the US House of Representatives, said she was “heartbroken” by the news.

She added: “Unfortunately, we know the tragedy of when political violence hits home very well.

“All of us must remember that it’s not only the act of violence, but also the reaction to it, that can normalise it. This climate of politically-motivated violence must end.”

In a tribute, Democratic National Committee chair Ken Martin said: “Melissa, Mark, John, and Yvette – these are not just names, and this is not just politics.

“These are people. They’re longtime friends to me and Jenn and so many others in Minnesota. They have children, loved ones, neighbors, and friends.”

Mr Martin added: “Today, we recommit ourselves to fight harder for the values that Melissa and Mark embodied – building a kinder, more just, and loving world. If this murderer thinks we will be silenced, he’s wrong.”