As Russia makes 2020 play, Democratic campaigns say they are in the dark, and experts fear U.S. elections are vulnerable

Several Democratic presidential campaigns targeted by a Russia-based operation on Facebook’s popular Instagram app said they had been unaware of the new foreign disinformation efforts until the tech giant announced them publicly last week, raising alarms that American democracy remains vulnerable to foreign interference even after three years of investigations into the Kremlin’s attack on the 2016 election.

The lack of advance notice to the apparent victims of the first known Russian attempts to interfere directly in the 2020 race has heightened fears that campaigns are largely on their own when it comes to guarding against attacks from foreign interests.

Read the full story and more in The Washington Post.