His political allies also weighed in. Cory Booker, the mayor of Newark, N.J., tweeted, "President calling for raising minimum wage to $9 an hour "No one who works full time (in America) should have to live in poverty."
Obama's opponents also reached out to their supporters. Republican House Majority Leader Eric Cantor tweeted, "RT if you think Washington has a spending problem."
However, it wasn't just politicians taking advantage of the event to support their causes.
The U.S. Army, for example, tweeted, "After a decade of grinding war, our brave men and women in uniform are coming home." - President Obama"
NASA also was represented. Lori Garver, NASA's deputy administrator, tweeted, "NASA missions observe our home planet to learn about how a changing climate affects all of us."
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