I want to know the answer to the following question:
Who rejected the  2007 vote to overturn the motorsport ban in Switzerland?
All the background I'm provided with is that "In June 2007 the Swiss National Council, one house of the Federal Assembly of Switzerland, voted to overturn the ban, however the other house, the Swiss Council of States rejected the change and the ban remains in place.". Is that enough to answer the question?
Answer: yes