First apperance in "Return of the loveable Dork" when it starts to rain and the orange skin of Brother America starts melting, when the author of the comic thought the loveable dork would fit better in the role of the USA than Trump
The Skin-Blob is what's left after Brother America went loveable again and represents the trumpish side of America.
Also appears in:
"Like in the olden days"
"Play date"
"The Rake"