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 (...)