In the context of Ancient Rome, the answer is Assembly of Centuries and Assembly of Tribes.
Explanation:
- The Senate was a powerful political body that advised consuls and had significant influence over legislation and state matters, but it did not have formal veto power like the consuls did.
- The Consuls - there were typically two of them - had the power to veto decisions made by the Senate and the assemblies, effectively acting as a check on their power.
- The Assemblies (both the Assembly of Centuries and the Assembly of Tribes) were designed to give voice to the citizens in the legislative process, and they primarily voted on laws and elected officials. However, they did not have the power to veto decisions made by the Senate or the consuls.
Thus, the assemblies themselves, while important in the political structure, did not possess veto power.