Though unions retain much public support, the share of American workers who actually belong to one has been falling for decades and is at its lowest level since the Great Depression
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.