hundreds of people who've been left homeless by a tornado. at least 25 people have died in mississippi, with one person killed in alabama. voters in berlin are to decide whether germany's capital should be carbon—neutral by 2030. it comes after a year of campaigning, but critics say the timeframe is unrealistic. donald trump has launched his campaign to return to the white house, with a rally for supporters in the state of texas. he used the platform to attack those who are seeking to put him behind bars. you're watching bbc news. now it's time for click.