House of Representatives speaker Paul Ryan said of Donald Trump: “I think conservatives want to know: does he share our values and our principles.” Photograph: Jonathan Ernst/Reuters

Paul Ryan, the Republican speaker of the House of Representatives, has said that he is “not ready” to endorse Donald Trump as his party’s presidentia(...)

Hillary Clinton and Bernie Sanders. Their debate  was the shouty, testy affair you would expect from a debate in New  York. Photograph: Seth Wenig/AP

The Brooklyn Roasting Company served a blend of Sumatran and Ethiopian coffee in the press centre at Thursday night’s Democratic presidential debate i(...)

Heidi and Ted Cruz: The senator and Donald Trump have escalated their bitter campaign feud, taking to social media in fight over their wives. Photograph: Jim Watson/AFP/Getty Images

That sound you have been hearing for the past nine months from the Republican presidential race is the bottom of the barrel being scraped. This week, (...)

Ted Cruz speaking at a rally in New York. The senator from Texas and candidate for the presidential nomination received an endorsement from former candidate Jeb Bush. Photograph: Reuters/Pearl Gabel

Texas senator Ted Cruz received a boost in his effort to rally Republicans behind his bid to beat Donald Trump in the Republican presidential race aft(...)

Republican Donald Trump and Democrat Hilary Clinton are frontrunners to secure their parties’ nominations for the presidential election. Photograph: AFP

Donald Trump and Hillary Clinton both won convincing victories in the Arizona presidential primaries on Tuesday, cementing their status as the frontru(...)

Trump protester Bryan Sanders, centre left, is punched by a Trump supporter as he is escorted out of Republican presidential candidate Donald Trump’s rally at the Tucson Arena in downtown Tucson, Arizona on Saturday. Photograph: AP

Demonstrators briefly shut down an Arizona highway leading to a campaign rally for Donald Trump on Saturday night while protesters rallied outside of (...)

Republican presidential candidate hopefuls Donald Trump and Ted Cruz  greet each following a debate sponsored by on March 3rd, 2016 in Detroit, Michigan. Photograph: Chip Somodevilla/Getty Images

Republican presidential hopeful Ted Cruz split victories in four nominating contests with front-runner Donald Trump on Saturday, bolstering Mr Cruz’s (...)

Nosy parkers will be excited to hear the news that celebrity chef Andrew Rudd has added his ultra-cool Rathmines pad (above)

EXTRAORDINARY ESCAPES  Imagine seeing the Northern Lights from your bed. A Kakslauttanen glass igloo, in Saariselkä, Finland, offers just that(...)

Students embrace after leaving campus after two teens were shot on Friday at Independence High School in the Phoenix suburb. Photograph: Matt York/AP

The shooting of two 15-year-old girls at an Arizona high school was an apparent murder-suicide, police have said. The incident at Independence High S(...)

Ammon Bundy, leader of the armed anti-government militia, speaking at a news conference at the entrance to the Malheur National Wildlife Refuge Headquarters near Burns, Oregon. Photograph: AFP/Getty Images

United States federal agents have closed in on the last four anti-government militants still holed up at a national wildlife refuge in Oregon after a(...)