Simon Marks

Presidential candidate Donald Trump has met overnight with the party's house speaker Paul Ryan. Audio

A growing number of senior Republican politicians in the United States say they are not ready to support Donald Trump in his bid for the Presidency, even though he is now the party's presumptive… Audio

After Ted Cruz and John Kasich left the race for the Republican nomination, Donald Trump is publicly making plans for his first 100 days in office. Audio

John Kasich, Donald Trump's last remaining challenger for the Republican Party presidential nomination, is expected to pull out of the race this morning. Audio

The pressure is mounting on Ted Cruz to win in Indiana tomorrow in what many are seeing as his last stand. Audio

The race to contest the US presidency is entering the crucial final stages with a round of voting today in five states Audio

Two bitter rivals have teamed up in an effort to stop Donald Trump becoming the republican nominee for the President of the United States. Audio

An extraordinary row has broken out in the United States between Donald Trump and leaders of the Republican Party that he's battling to represent at this November's Presidential election. Audio

The U.S. President Barack Obama has met with his Cuban counterpart Raul Castro. Audio

US correspondent Simon Marks reports from Cuba, where President Obama arrived today. Audio

No sitting US President has set foot in Cuba since Calvin Coolidge arrived on a battleship nearly 90 years ago Audio

The US Secretary of State, John Kerry, has accused the Islamic State group of committing genocide against religious minorities in the Middle East. Audio

And you might think Washington DC's about as far away from the flag debate as you can get. But as our Washington Correspondent Simon Marks found out, New Zealand's referendum is inspiring one group of… Audio

Republican ex-presidential candidate Mitt Romney has delivered a stiniging attack on Donald Trump calling him a conman and a fake. Our Washington correspondent is Simon Marks. Audio

Republican voters turned out in record numbers on Super Tuesday, and Donald Trump was the main beneficiary. Audio

Today is crunch time in the race for the White House. Super Tuesday is a coast-to-coast battle for delegates across a dozen states for both Republican and Democratic presidential hopefuls. Audio

Hillary Clinton has won a decisive victory in South Carolina, reinvigorating her campaign and re-establishing herself as the leading contender for the Democratic Presidential nomination. Our… Audio

Former Florida Governor Jeb Bush has pulled out of the race for the Republican Party's presidential nomination after suffering defeat in the South Carolina primary at the hands of Donald Trump. Audio

Pope Francis says U.S. Republican presidential candidate Donald Trump is "not Christian" because of his views on immigration. Audio

Republican Donald Trump and Democrat Bernie Sanders have coasted to victory in the New Hampshire presidential primaries. Audio