In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.

Context: Trump tweets about himself while Obama serves meals in a shelter in Houston. # Butterfly Rebellion (@Butterfly_Reb) August 28, 2017 Answer: tweets about himself
what was trump doing while obama serves meals in a shelter