Deirdre Heenan: Twitter’s double-edged sword leaves Beattie’s liberal credentials in tatters

The UUP leader is just the latest politician to find out that contentious social media posts have the potential to derail a career

Doug Beattie, UUP leader: a plethora of tweets from a decade ago resurfaced to cast serious doubt on his image as a liberal, progressive, moderate leader. Picture: PA