Final answer:
To find the current status of Senate seats, it's recommended to visit the 270towin site and look for the latest information on 'toss-up' Senate seats.
Step-by-step explanation:
The question asks about the Senate seats that are considered 'toss-ups' or too close to determine the winner on a specific date. Unfortunately, the provided information does not include any up-to-date data or reference to the 270towin site. Therefore, I cannot provide a specific answer to your question. To find the current status of Senate seats, it's recommended to visit the 270towin site and look for the latest information on 'toss-up' Senate seats.