Former Maricopa county sheriff and current Arizona Republican Senate candidate Joe Arpaio on the campaign trail  at the Tucson Expo Gun Show. Photograph: Caitlin O’Hara/New York Times

Donald Trump finally succumbed to pressure and ordered flags to be flown at half-mast in honour of John McCain on Monday. While the U-turn was ostensi(...)

An  11-year-old transgender child of an active duty serviceman  looks on during a press conference condemning US president Donald Trump’s ban on transgender service members. Photograph: Justin Sullivan/Getty

Transgender individuals will be prohibited from serving in the US military “in any capacity” US president Donald Trump said on Wednesday, undercutting(...)

US president Donald Trump:  In the hours preceding the missile strike on the Shayrat airfield in western Syria, the Trump administration delivered its strongest criticism yet of Russia’s involvement in the Syrian civil war. Photograph: Jim Watson/AFP/Getty Images

US lawmakers from both parties backed US president Donald Trump’s decision to launch a military strike against Syria, but demanded further details on(...)

 US Senator John McCain speaks during the 53rd Munich Security Conference (MSC) in Munich, Germany, on Friday. Photograph: EPA

Republican senator John McCain said on Friday Donald Trump’s administration was in “disarray” and that Nato’s founders would be alarmed by the growing(...)

Chinese dredging vessels are purportedly seen in the waters around Mischief Reef in the disputed Spratly Islands in the South China Sea. Photograph: Reuters/US Navy

The United States said on Friday that China had placed mobile artillery weapons systems on a reclaimed island in the disputed South China Sea, a devel(...)