John Geer: The public sees merit in negative ads.
Lynn Vavreck and Ryan Enos: Obama’s shift on gay marriage disproportionately brought along African-Americans and racially liberal whites.
Michael Tesler: Attitudes toward homosexuality are a more important ingredient in assessments of Obama performance than they were before his announcement.
Adam Myers: Republicans are slow in warming to Romney; only 21% like him a lot as a person.
And in Democratic Principles are Sometimes Inconvenient, I find that supporters of Obamacare are not so enthusiastic about judicial review.