More than 100,000 political ads have aired in Iowa so far, up 65% on 2016.
A live news service from Bloomberg is one of many new video partnerships that Twitter unveiled today, part of a bid to attract new users and ad revenue. Click the audio player above to hear the full story.
'I don't think we represent ourselves very well,' says journalist Patrick Gavin.
Bloomberg Reporter Rebecca Greenfield talks about the new ways companies can track employees.
A post-election poll gives Trump benefit of the doubt.
He does this dance every four years.