The correct answer to this open question is the following.
The power of Congress that Senator Paul probably most concerned about based on this passage is the Power to Declare War.
The United States Constitution states on Article I, section clause 1, that the United States Congress has the power to declare war. The Constitution grants Congress with expressed powers and this is one of them. That is why Senator Rand Paul is reflecting on the great responsibility Congress has regarding thus power of declaring war against another nation.
Education in ancient<span> Rome progressed from an informal, familial system of education in the early Republic to a tuition-based system during the </span>late<span>Republic and the Empire. The Roman education system was based on the Greek system – and many of the private tutors in the Roman system were Greek slaves or freedmen.</span>
It would be the fall of the roman empire. hope it helps
Maybe include the factors you can choose from.