Russian hacking of the US election is the most extreme case of how the internet is changing our politics

From Trump's mastery of Twitter to the insecurity of technology, cynicism and fear threaten our liberal democracy

Ever since the internet went mainstream in the 1990s people wondered about how it would affect democratic politics. In seeking an answer to the question, we made the mistake that people have traditionally made when thinking about new communications technology: we overestimated the short-term impacts while grievously underestimating the longer-term ones.

The first-order effects appeared in 2004 when Howard Dean, then governor of Vermont, entered the Democratic primaries to seek the party's nomination for president. What made his campaign distinctive was that he used the internet for fundraising. Instead of the traditional method of tapping wealthy donors, Dean and his online guru, Larry Biddle, turned to the internet and raised about $50m, mostly in the form of small individual donations from 350,000 supporters. By the standards of the time, it was an eye-opening achievement.