The latest Gallup has Obama beating Clinton among Hispanic voters (h/t TPM).
So...let's do a quick tally of all the groups that Mark Penn feels are marginal for the Democratic nominee: Hispanics, young people, college educated voters, white males, African-Americans, independents, progressives, moderate Republicans, and of course voters in Minnesota, Illinois, Idaho, Washington, Virginia, Maine, Maryland, D.C., Connecticut, Georgia, etc.
Oh, and:
Gallup also finds that Obama has gained among middle-aged voters, women, and self-identified Dems.
He is, however, trailing in support from batshit campaign advisors who work for Hillary Clinton.