What's the Best (and Worst) Ad Campaign on Twitter?

Nov. 11 (Bloomberg) -- Bloomberg deals reporter Cristina Alesci looks at the most effective Twitter ad campaigns and some that backfired as well. She speaks on Bloomberg Television’s “In The Loop.”

Spain's Socialists Clear Rajoy's Path to New Government
43:44 - Spain move closer to the formation of a new government as the opposition Socialists agreed to end a 10-month impasse, clearing the way for a second term for caretaker Prime Minister Mariano Rajoy. Bloomberg's Charles Penty reports on "Bloomberg Surveillance." (Source: Bloomberg)
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