People connect to form groups on Twitter for a variety of purposes. The networks they create have identifiable contours that are shaped by the topic being discussed, the information and influencers driving the conversation, and the social network structures of the participants.
President Obama meets with his Canadian and Mexican counterparts at a time when the U.S. public has a positive view of Canada, but more lukewarm feelings toward Mexico.
The current federal minimum wage falls below the poverty threshold for most households. A new CBO report says raising the minimum will increase income for millions of low-wage workers but cost thousands their jobs.