I gave her kudos for much of her portrayal, but not the overly exaggerated mouth pursing. Even the best actors make mistakes in their portrayals at times.
Given I appear to be the ONLY one on this thread who has actually seen the first episode, I find your comments toward me and my take really inappropriate. I actually DID discuss the way in which the series has thus far presented the Obamas in a post upstream. It is not merely Viola's exaggerated mouth movements that is problematic. The series may get past this and improve. There are 8 episodes, after all. But, thus far., I find it problematic.
And yes, the constantly exaggerated lip-pursing is such a caricature of Michelle Obama as to be offensive and not at all representative of her articulate speech and beauty. It is the kind of focus that racists would have adopted in decades/centuries past. I'm sure (quite obviously) that was not Viola's intent, but it was OTT. I hope it gets toned
down.
No more accusations, though. Once you have actually seen it, as I have, we can revisit your impressions. YMMV.