The role of “influencers” has taken center stage in the latest debate over how campaigns may advertise online, particularly on social media. It has also raised the question again of whether tech companies have a responsibility to vet those ads.

In February, the presidential campaign for former New York City Mayor Michael Bloomberg bought sponsored content to be shared on popular Instagram accounts.

Recommended Stories

Hill joins FEC in war on Drudge, online media

Bill would ban foreign-funded political ads

Facebook’s new advertising policy empowers authoritarian regimes