Two officials, including the governor, have admitted to wearing blackface, while a third is facing allegations of sexual assault.
As many as 100,000 additional voters could participate next year, potentially altering the course of the 2020 Democratic primary.
A soon-to-be-released plan would allow lesser-known candidates to share a stage with the party's lead contenders, at least at first.
Of the work accomplished at the Chicago meeting, only the restraint on the nomination power of superdelegates has teeth.
Bernie Sanders Says Vote on Superdelegates Will Make Democratic Party 'More Open, Democratic and Responsive'
The Vermont senator congratulates the Democratic National Committee for approving a measure that will curtail the party establishment's ability to tip the scales in favor of its preferred candidate.
This revision, if made as expected, will change the contours of the 2020 presidential nomination process.
Here's an action item that should appear on the agenda at this week's Democratic National Committee meeting in Chicago.
The Democratic National Committee says no information was compromised by the thwarted attempt, which has been reported to law enforcement.
Primaries held in four states—Vermont, Connecticut, Minnesota and Wisconsin—featured names like Bernie Sanders, Scott Walker and Tim Pawlenty, along with those of a number of newer contenders.