Any reversal of US policy due to Brexit should be handled with care

‘It is already nigh-on impossible for the global climate to avoid heating by more than 2 degrees’

Irish-American anti-Trump Republican has written a memoir. But will he run in 2024?

Boost for Trump as supreme court ruling to uphold law will play well with conservatives

More than half of the states across America have lifted at least some restrictions

Fiery exchanges during third primary debate with all still to play for in race for nomination

‘You don’t talk to the United States that way, at least under me,’ says US president

‘I don’t know what we would have done without the clinic . . . They just give you the help you need’

California leads legislative moves with privacy law modelled in part on GDPR

TCD sociology lecturer Dr David Ralph on what constitutes racism and why we are not living in a ‘post-racial nirvana’

The director on fighting to make movies, climate change and teenagers who can save the world

Republicans woo Hispanic migrants opposed to socialism of their countries of origin

Security adviser Bolton says Iran should not ‘mistake US discretion for weakness’

US president says dawn strike was cancelled after he was told 150 people would be killed

New rule allows states to set emissions and undoes former president’s Clean Power Plan

The former CIA director is a fierce critic of the US president – and the feeling is mutual

US president accused of backing N Korea’s ‘murderous dictator’ in tweets while abroad

America Letter: While Trump wants to avoid Middle-East conflict, volatile factors simmer

Proposal devised by president’s son-in-law adviser unlikely to gain support in Congress

Alyssa Mastromonaco, author of So Here’s the Thing..., on the race to succeed Trump