US Democrats debate ways to cut back big tech

US Democratic presidential contender Elizabeth Warren went after big tech during the Democratic debate on Tuesday night but brushed off rival Kamala Harris’s challenge to join her in calling for President Donald Trump’s suspension from Twitter.

Ms Warren, a US senator who is in a virtual tie with former vice president Joe Biden in many opinion polls in the Democratic race, argued for her proposal to split up major tech firms such as Facebook, Google-owner Alphabet, and Amazon over competition concerns, in what was the most wide-ranging discussion of big tech in the Democratic debates to date.