Trump’s foreign policy

Candidate for Republican nomination says US needs unpredictable approach, writes Demetri Sevastopulo

Can Hill thrill after the Bern?

Sanders has forced Clinton to tack left but many of his fans say they will stay home on election day

What pawnbrokers can teach central banks

Just two American companies are still in the triple-A club; Microsoft and Johnson & Johnson

US economic growth cools in first quarter

GDP decline to 0.5% raises doubts over durability of expansion

New wave robots for next great power game

Pentagon invests in AI and autonomy to keep global rivals at bay

Cruz picks Fiorina as running mate

Last-ditch effort by Texas senator as he attempts to regain momentum

Trump to ‘shake rust’ off foreign policy

Contradictions remain in Republican front-runner’s approach

Fed concerns about global economy ease

Bank notes US growth slowdown and sluggish household spending

Trump targets Clinton after both triumph

Delegate numbers look increasingly decisive for the frontrunners

‘White House race not key to drug costs’

GSK chief says US election one of many factors adding to pressure

Cruz is no help to the Brexit campaign

His sentiments on whether UK should leave are ambivalent at best

US to deploy robot combat strategists

Pentagon aims to sharpen battlefield decision-making but rules out fighting automatons

Investors look for signs of Fed action

Central bank expected to keep rates unchanged this week

Trump crushes rivals in northeast primaries

Billionaire sweeps five Republican contests to boost convention standing

What is a contested convention?

Republicans are on course for a fight over delegates in Cleveland

A moment of truth for divided Republicans

The gap between party rules and popular democracy is widening

FBI considers revealing how iPhone hacked

Agency could disclose the device vulnerability to the tech company

Australia anniversary revives gun debate

Port Arthur massacre sparked clampdown now pushed as model for US

Canada flies the anti-austerity flag

Finance minister says spending is the way to achieve global growth

US to send 250 more troops to Syria

Special operations deployment heralds assault on Isis strongholds