Andy Burnham has committed to reaching the Nato target of 3.5% spending by 2035, but not 3% by 2030.
The US president says the UK was not "there to help me" in his ongoing war with Iran.
The leaders also discussed Ukraine and "the UK's drive to get closer to Europe", No 10 says.
The leaders also discussed Ukraine and "the UK's drive to get closer to Europe", No 10 says.
Cold War veterans who oversaw nuclear tests have claimed they caused lifelong health problems.
The party's continued prominence has brought what prominence always brings: scrutiny, says BBC political editor Chris Mason.
Some MPs have pressed for the government to introduce a cap on UK-based donors.
The PM said his government would be "grounded in fiscal responsibility" as he faced Kemi Badenoch at Prime Minister's Questions for the first time.
The Reform UK leader said a "whole ecosystem" didn't want "new kids on the block succeeding".
The home secretary says the money will help support Cleveland Police in the wake of the A66 crash.
The Reform leader has been dogged by questions over his finances after receiving a £5 million sum from Christopher Harborne.
Burnham's exchanges with Kemi Badenoch slipped into familiar territory of trading barbs, writes Alex Forsyth.
Huge AI spending plans and the ongoing war in Iran are driving up borrowing costs around the world.
Curiously, the questions at lunchtime may well feel like a minor extension of what he faced on Tuesday, the BBC's political editor writes.
Higher borrowing costs have piled fresh pressure on Andy Burnham ahead of his first Budget.
Tory leader Kemi Badenoch said Burnham was offering "more government control, more taxes and more politicians", as he addressed MPs for the first time as PM.
Jails in England and Wales are nearing maximum capacity as the justice secretary prepares to give more details in the Commons on the early-release scheme to free inmates.
The UK's Foreign Secretary Ed Miliband pledged on Tuesday to introduce a "comprehensive reset" of policy on Israel.
The prime minister's first appearance in Parliament comes more than six weeks after he entered No 10.
The move will trigger a by-election to replace the former prime minister in his London constituency.