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: Road trip! Loaded the van & set off for IA. Met a great family when we stopped this afternoon. Many more to come. -H Hillary Clinton (@HillaryClinton) April 13, 2015 Answer: she was going on a road trip
what mode of transportation was hillary clinton using?