Lawmakers said they wanted to make Washington’s resolve clear not just to Pyongyang, but to the United Nations and other governments

The US Senate voted unanimously on Wednesday to toughen sanctions on North Korea over its nuclear program, human rights record and cyber activities, a(...)

Steam rises from the stakes of the coal-fired Jim Bridger Power Plant outside Point of the Rocks, Wyoming. The US supreme court on Tuesday delivered a major blow to President Barack Obama by blocking federal regulations to curb carbon dioxide emissions from power plants. Photograph: Jim Urquhart/Reuters

The US supreme court has delivered a major blow to President Barack Obama by putting on hold federal regulations to curb carbon dioxide emissions main(...)

Vietnam veteran David AuCoin (r) puts his arm around Republican candidate John Kasich, as he asks a question during a town hall meeting in Plaistow, New Hampshire. Photograph: Win McNamee/Getty Images

Republican John Kasich enters the Concord High School in New Hampshire to the White Stripes anthem Seven Nation Army, clapping along to the beat, quic(...)

US president Barack  Obama conceded that, seven years after his campaign promise to overcome divisions in America, he had failed to meet it. “It’s one of the few regrets of my presidency that the rancour and suspicion between the parties has gotten worse instead of better,” he said.  Photograph:  Evan Vucci/Pool/Getty

Barack Obama stopped as he was about to leave the House of Representatives chamber on Capitol Hill after delivering his State of the Union address, hi(...)

Ammon Bundy: “I will say this refuge from its very inception has been a tool of tyranny.”  Photograph: Justin Sullivan/Getty Images

The further right you go on the Republican flank, the greater the dislike of Washington and big government grows.  Closer to the centre, preside(...)

South Korean soldiers draw down a cover from loudspeakers, just south of the demilitarised zone separating North and South Korea, in Yeoncheon, South Korea. Photograph: Reuters

South Korea broadcasted a high-decibel propaganda barrage across its border with North Korea on Friday in retaliation for its nuclear test, while the(...)

South Korean protesters burn an effigy of North Korea leader Kim Jong-Un during a  rally against development of nuclear weapons on January 7th, 2016 in Seoul, South Korea. Photograph: Chung Sung-Jun/Getty Images

The United States called on China on Thursday to end its “business as usual” relationship with its ally North Korea after Pyongyang defied world power(...)

 US Congressman Joe Kennedy on a visit to Northern Ireland in April 1988. Photograph: Pacemaker

The controversial visit of United States congressman Joe Kennedy to Northern Ireland in 1988 is detailed in previously confidential files released tod(...)

US Republican presidential candidate Donald Trump waves to supporters after a Pearl Harbor Day rally aboard the USS Yorktown memorial in Mount Pleasant, South Carolina. Photograph: Ramdall Hill/Reuters

None of the inflammatory verbal bombs that businessman Donald Trump has dropped since he declared his presidential candidacy six months ago have damag(...)

Blaine Eaton II and his election opponent Mark Tullos open  small  boxes containing straws in the state office building in Jackson, Mississippi. Photograph: William Widmer/The New York Times

Sometimes US politics is about ideas, powered by Jeffersons and Adamses and Reagans. Sometimes it is about strategy, with races determined by the che(...)