Republican would-be presidential candidate Donald Trump at Fountain Park, Arizona, during a campaign rally. Photograph: Ralph Freso/Getty Images

Most people would be upset to be at the centre of an agitated national debate about whether they were more like Hitler, Mussolini, Idi Amin, George Wa(...)

US president Barack Obama has gone out of his way to pick a nominee whose centrism makes him difficult for Republicans to oppose. Photograph: Evan Vucci/AP

A new front in the battle for the White House and control of the US Congress opened up this week with Barack Obama’s nomination on Wednesday of 63-yea(...)

Nevada Governor Brian Sandoval was among the possible candidates President Barack Obama was considering appointing to the US Supreme Court, before ruling himself out. Photograph: Steve Keegan/Reuters

Democrats have called on Republicans to do their job and hold hearings to consider US president Barack Obama’s Supreme Court nominee to replace the l(...)

In attacking the decision to legalise same-sex marriage (Obergefell v Hodges, 2015), Justice Antonin Scalia typically did not pull his punches over wh(...)

Supreme Court Justice Antonin Scalia: Died of a heart attack. Photograph: Reuters

Battle lines have been drawn in the fight to replace conservative US supreme court justice Antonin Scalia, threatening to turn a fraught presidential (...)

Barack Obama speaks on the death of Supreme Court justice Antonin Scalia: he  vowed to  nominate a replacement “in due time” while  Donald Trump urged  Republicans to “delay, delay, delay”. Photograph:  Mandel Ngan/AFP/Getty Images

The death of conservative diehard Antonin Scalia, the long-serving US Supreme Court justice, has shifted the ground under the American presidential ra(...)

Republican presidential candidates  Jeb Bush, senator Ted Cruz and Donald Trump  at the CBS debate in the Peace Center in Greenville, South Carolina. Photograph:  Spencer Platt/Getty Images

Republican White House hopefuls have called for US president Barack Obama to step aside and allow his successor to nominate the next Supreme Court jus(...)

 US supreme court justice Antonin Scalia, who  died on Saturday at the age of 79. Scalia was appointed by President Ronald Reagan in 1986 and became a villain to liberals and a hero to conservatives. Photograph: Gavin Averill/The Hattiesburg American via AP

The death on Saturday of Conservative US supreme court justice Antonin Scalia, one of the most politically influential American judges of his generati(...)

The idea that  Trump could carry Republican hopes and lead the party of Abraham Lincoln into November’s election  is now a very real prospect. If he wins in the Iowa caucuses next Monday, it could be difficult to stop him. REUTERS/Scott Morgan

Cast your mind back seven months to that moment Donald Trump descended that escalator at Trump Tower into the presidential race to the strains of Neil(...)

US president Barack Obama leaves the stage after a news conference at the conclusion of his visit to Paris, for COP21. Photograph: Benoit Tessier/Reuters

President Barack Obama’s prominent role during the first two days of the COP21 UN climate change conference will help to consolidate his legacy as a (...)