Democratic Party chairs in the four early presidential states are working to convince the 2020 presidential candidates to avoid waging social media disinformation warfare against each other.

The effort began this week with a letter to state party chairs across the country broadly laying out the issue with an ultimate goal of establishing what amounts to a non-aggression pact, according to state party operatives in four states who have received or have direct knowledge of the letter....

The move this week by the early state chairs aims to spur a broader discussion among the 2020 contenders about the issue, and to convince them to refrain from targeting one another in similar ways. The goal is to have 2020 campaigns agree to forego illicit online campaign tactics like those used against Democrats in the 2016 presidential campaign, including the use of fake social media accounts, the spread of disinformation, hacking and the use of hacked materials.

There’s also discussion about candidates calling out supporters for taking part in that activity.