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.
Q: Context: The Democrats are most angry that so many Obama Democrats voted for me. With all of the jobs I am bringing back to our Nation, that number.. Donald J. Trump (@realDonaldTrump) January 15, 2017 Answer: that obama democrats voted for him
A:
why does donald trump think the democrats are angry?