Meet Drew Westen, author of The Political Brain: The Role of Emotion in Deciding the Fate of the Nation:

Drew Westen, a genial 48-year-old psychologist and brain researcher, was talking to a rapt liberal audience about the role of emotion in politics, how to talk back aggressively to Republicans, and why going negative is not to be feared.

It was Day 2 of the progressive Take Back America confab, and those who had crowded into a meeting room of the Washington Hilton were about to discover why Westen, a psychology professor at Atlanta’s Emory University and former associate professor at Harvard Medical School, had quietly become the great rumpled hope of Democrats who believe their candidates should have won the last two presidential elections.

Example: When President Bush recently refused to allow Karl Rove to testify under oath about his role in the sacking of federal prosecutors, Westen said, Democrats blundered. Instead of insisting Rove testify under oath, they simply should have said (over and over), "Mr. Bush, just what is it about ‘So help me God’ that you find so offensive?"

Read the whole article here. The problem Westen’s work addresses is well known: The Rs have learned how to effectively communicate to the gut, and run rings around the Ds who talk to the brain (recall the Bush-Kerry debates). Westen is the guy who looks like he could change this.