A poll worker deposits a mail-in ballot at an official dropbox at a polling place in Miami, Florida. Photograph: Saul Martinez

Democrats are mounting a strong challenge to President Donald Trump in the southern state of Georgia, according to a new poll that shows presidential (...)

US president Donald Trump with ghis then newly-appointed national security adviser John Bolton in April, 2018. Photograph:  Nicholas Kamm/AFP via Getty Images

Donald Trump’s lawyers were set to wrap up their opening arguments in the Senate impeachment trial on Tuesday, as senators debate whether to call witn(...)

Rev Al Sharpton: Donald Trump’s attacks on the black-majority city Baltimore are “bigoted and racist”. Photograph: Stephanie Keith

US president Donald Trump stood by his criticisms of the city of Baltimore and its political representatives on Monday, amid widespread criticism that(...)

One paper at the British Society of Animal Science conference noted that even small changes to the feeding regimes of new-born calves can result in significant benefits to their gastrointestinal tract.

More than 500 scientists, vets, policymakers and farmers from around the world gathered in Croke Park last week to discuss the challenges and opportun(...)

US representative John Lewis: “I believe in forgiveness. I believe in trying to work with people. It’s going to be very difficult.” Photograph: Andrew Harrer/Bloomberg

President-elect Donald Trump began a long holiday weekend that honours slain black civil rights leader Martin Luther King Jr by attacking another rig(...)