seems suspicious

Romney refers to Osama as Obama.

During a speech today, former Gov. Mitt Romney (R-MA) said, “Actually, just look at what Osam — Barack Obama — said just yesterday. Barack Obama, calling on radicals, jihadists of all different types, to come together in Iraq.” Kevin Madden, a Romney spokesman, claimed Romney “misspoke” both times. “He was referring to the audiotape of Osama bin Laden and misspoke.”

(Think Progress)
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Now, i can understand a slip of the tongue, but to start to say Osama and to stop and then say Obama not once, but twice? It sounds like he went out of his way to make this 'mistake".