Chadema pledges a friendly tax regime, ACT Wazalendo emphasises citizen welfare, and CCM says it will stay on course.
US actor George Clooney and his wife Amal have also said they will monitor the trial.
The money will go to the roads and bridges project that will upgrade the 105km Koboko-Yumbe-Moyo road from gravel to bitumen.
Mode of operations plus a different funding process for the Assembly and the Secretariat appear to be at the heart of the matter.
US has however faced criticism on the alleged lack of transparency of its drone warfare programmes.