Donald Trump  as he announces his candidacy for the US presidency:  his comments about Mexicans   have made him stand out in a crowded field of Republican candidates. Photograph:  Christopher Gregory/Getty Images

It’s hard to say what’s more shocking: the outrageous remarks property magnate Donald Trump has made since he announced his presidential candidacy or (...)

Fire crews try to control the blaze at Mt Zion African Methodist Episcopal Church in Greeleyville, South Carolina. Photograph: Clarendon County Fire Department/Reuters

US investigators are examining the cause of a series of fires at black churches across the southeastern United States over the past two weeks. The (...)

Office of Personnel Management in Washington: data on millions of US government workers has been hacked. Photograph: Shawn Thew/EPA

Rarely has a computer hack of personal information, allegedly by agents of a foreign government, caused such a stir in Washington DC. A breach at the (...)

A file photograph of  gay activist displaying signs along the St Patrick’s Day parade route in New York in protest at being excluded from the annual event. Photograph:  Emmanuel Dunand/AFP/Getty Images.

New York City’s St Patrick’s Day parade has overhauled its management structures to oust the organising committee’s long-standing chairman John Dunlea(...)

The damaged balcony being removed from the fourth story apartment building balcony in Berkeley, California.  Photograph: Elijah Nouvelage/Reuters

A California judge has refused the construction company that built the Berkeley building – where six students died last month in a balcony collapse(...)

The private dealings involving Hillary Clinton and her  advisers were revealed through emails released in response to  her use of a personal email account to conduct US government business. Photograph: Reuters

Hillary Clinton ruled herself out of a panel discussion on Northern Ireland in 2009 involving Irish and British politicians at a meeting of her family(...)

US president Barack Obama: keeping in touch with European leaders as US continues to monitor the Greek debt crisis. Photograph: Saul Loeb/AFP/Getty images

The Obama administration has again warned of the potential damage to the European economy and the knock-on effect on the US economy if the Greek de(...)

A man watches a television broadcast of US president Barack Obama speaking, in Havana on Wednesday. Mr Obama said the US would increase contacts with the Cuban people and engage with the Havana government, civil society and ordinary Cubans. Photograph: Enrique de la Osa/Reuters

The United States and Cuba have agreed to reopen embassies in each other’s capitals, officially restoring diplomatic relations more than a half centur(...)

The US company that built the apartment block where six Irish students were killed in a balcony collapse last month has criticised the City of Berkeley’s initial investigation and warned against further “destructive testing” of the evidence.

The US company that built the apartment block where six Irish students were killed in a balcony collapse last month has criticised the City of Berkele(...)

New Jersey Governor Chris Christie waves to supporters as he announces his run for president. Photograph: Julio Cortez

New Jersey governor Chris Christie has joined the packed Republican race for the White House, formally declaring his candidacy and pledging to run a (...)