Twitter becomes a key real-time tool for campaigns

By Karen Tumulty, Published: April 26The Washington Post The bully pulpit has a new kind of altar call: “Tweet them. We’ve got a hashtag. Here’s the hashtag for you to tweet them: #dontdoublemyrate.” President Obama repeated that Twitter hashtag twice more during a Tuesday speech opposing an increase in student loan interest rates. For good measure, he even had his Chapel Hill, N.C., audience chant it back to him. READ MORE....