Supporters and staff greet Democratic US Senate candidate Rev Raphael Warnock as he enters his campaign headquarters in Atlanta, Georgia. Photograph: Jessica McGowan

As the race for the White House went down to the wire this week, captivating the attention of the nation and the world, another contest remained too c(...)

US president Donald Trump: His team spent $11 million on a 60-second ad during the Super Bowl in February. Photograph: Saul Loeb

“Can you donate $25 to make history?” That’s just one of the emails from Democratic vice-presidential candidate Kamala Harris flooding into inboxes ac(...)

‘The tech industry has overwhelmingly supported many of those most sharply proposing its regulation and break-up.’  File photo. Photograph: Yui Mok/PA

As the weeks creep towards the November US presidential election, technology companies remain in the crosshairs on both sides of the political divide.(...)

Chicago, one of the “sanctuary cities”  that limit their co-operation with US federal immigration enforcement. Photograph: Saul Loeb/AFP/Getty Images

A judge in San Francisco on Tuesday temporarily blocked US president Donald Trump’s efforts to starve localities of federal funds when they limit thei(...)

Tech leaders including  Larry Page,  Tim Cook, Jeff Bezos, Facebook’s Sheryl Sandberg and Tesla’s Elon Musk are expected to meet with  Donald Trump on Wednesday. Photograph: Shannon Stapleton/Reuters

Google is racing to hire more conservatives for its lobbying and policy arm, trying to get a foothold in president-elect Donald Trump’s Washington af(...)

Oracle founder Larry Ellison: the Republican gave $5m to Donald Trump’s rival Marco Rubio during the primaries, yet election donation records indicate he has not yet donated to Trump

Donald Trump is not the candidate of choice in Silicon Valley. I’m just back from a week in the region, and California, with its jumbo jackpot of elec(...)

 Charles Koch and his brother David, have been at the centre of political controversy in recent years for using their power to back Republican candidates.   Photograph:  John Chiasson/Liaison

One of the largest privately-owned businesses in the US, Koch Industries, is among the multinationals whose dealings are covered in the latest batch (...)