Now that the Senate has voted to proceed to the “fast track” trade bill, proponents are working to navigate a way around several amendments that could end up killing the legislation, which would prevent President Obama from negotiating what he hopes will become a signature trade agreement.

Nine amendments could receive Senate floor consideration this week, including some that could serve as “poison pills” that make it difficult, if not impossible, for the legislation to become law because of opposition in the House and White House.