Democratic presidential candidate Bernie Sanders speaks during a rally  in Pittsburgh, Pennsylvania, on Monday. Photograph: Jeff Swensen/Getty Images

In the City of Brotherly Love, there was not much sisterly affection for Hillary Clinton among Bernie Sanders’s supporters at a rally on Monday night.(...)

Aerial photo shows one of the locations being investigated in Pike County, Ohio, as part of an ongoing homicide investigation. Photograph: Lisa Marie Miller/The Columbus Dispatch via AP

Police in Ohio have interviewed more than 30 people in the investigation into the fatal shootings of eight family members at four different locations.(...)

US Republican presidential candidate Donald Trump speaks following victory in the New York state primary: his 60 per cent score in New York State was his highest level of support in his campaign so far. Photograph: Jewel Samad/AFP/Getty Images

“Today you proved there’s no place like home,” an ecstatic Hillary Clinton told supporters in a Manhattan hotel in her adopted home state after rompin(...)

Ohio governor John Kasich is last in the Republican presidential race and sees a contested convention as his only hope. Photograph: Eduardo Munoz Alvarez/Getty Images

Peacocks strutted around the lawns of the Milleridge Inn as a small crowd wandered into the Jericho, New York restaurant on Friday. The people passe(...)

Republican presidential candidate Donald Trump speaks to guests during a campaign rally at the Radisson Paper Valley Hotel in Appleton, Wisconsin. The state’s  voters go to the polls for the Republican  primary on Tuesday. Photograph: Scott Olson/Getty Images

This week was the first since the inaugural qualifying round of the US presidential election in Iowa on February 1st that there hasn’t been primary or(...)

Whither Wisconsin?: Republican presidential candidate Donald Trump looks to supporters as he leaves a campaign stop yesterday, in Appleton, Wisconsin. Photograph: Nam Y Huh/AP

The danger signs are mounting for Donald Trump in Wisconsin: right-wing radio hosts are flaying him, governor Scott Walker and other elected Republica(...)

Viridian is a leading independent energy company in the all-Ireland market with two main brands, Energia in the Republic and Power NI north of the border

Energy group Viridian’s new owner may use the Irish company to buy similar businesses in Britain, according to one of its partners. Specialist invest(...)

 Republican presidential candidate Ted Cruz (L) shakes hands with former  Jeb Bush, who has withdrawn from the race,  before the start of a Republican Presidential Debate. Photograph: Robyn Beck/AFP/Getty Images.

Jeb Bush, the former governor of Florida who left the US presidential race after the South Carolina primary, has endorsed Ted Cruz to contest the pres(...)

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 (...)

We are mesmerised by the US primaries like never before. Donald Trump, appalling but like a trashy novel you cannot put down, has infused them with a (...)