"In republican government, the legislative authority necessarily predominates. The remedy for this inconveniency is to divide the legislature into different branches; and to render them, by different modes of election and different principles of action, as little connected with each other as the nature of their common functions and their common dependence on the society will admit."

Federalist #51

How did the change in the election of the Senate due to the 17th amendment alter the function of congress and it's role in republican government?