Someone tweeted a photo of that Martha's Vineyard event Wu went to a few days back.
This is a first I think in that it's the first time I've ever seen anybody who isn't directly connected with the Wu campaign talk about having seen her in person on social media. The connected tweet wasn't exactly as ringing endorsement of Wu, but neither was it condemning her.
I count about 19 people, not including who ever took the photo (which may have been Frank since he's not pictured.) I guess they must have been listening to Wu's fifth reich speech.
Perhaps you shouldn't read too much in to the expressions in one still shot, but they don't look hugely impressed. I guess we'll see if their attention turned in to donations next month. They certainly can't vote for Wu.
Edit: Forgot to add, I guess Wu won't take the hint that she's practically the only person in the gathering wearing a dress, and the only one wearing such a short skirt. I wonder how it's possible to be exposed continually to the way your peers dress without noticing that you're out of step.