who are its supporters?
Various sources; Richard Nixon and John F. Kennedy being few.
Rampart Dam
Support for the dam project came from a variety of sources, but supporters tended to use three primary arguments in favor of its construction: the electricity generated by the project would be cheap and plentiful, industries would be attracted to Alaska by the cheap electricity, and the dam's construction would have minimal impact on the environment and human populations.

During the campaign that preceded the 1960 U.S. Presidential election, both candidates—Richard Nixon and John F. Kennedy—made campaign stops in Alaska. Both men gave their support to the Rampart Dam project, 
what is rampart dam? A project to dam the Yukon River in Alaska for hydroelectric power. who or what was responsible for its design? U.S. Army Corps of Engineers where is the site of this project located? Northwestern North America what are the human objections regarding this? Objected to the potential loss of the region's history. what is the anticipated cost? $1.39 billion in total. what are electrical argument regarding this? The dam would provide cheap electricity which will be the economic basis of the region. what are its opposition? It was based on three separate objections: ecological, human, and financial. what is the latter mentioned objection? Cheap electricity would not be enough to attract industry to Alaska. what is the former mentioned objection? It would flood the Yukon Flats, a large wetland area.
wiki:20495873
Rampart Dam [SEP] Supporters
Support for the dam project came from a variety of sources, but supporters tended to use three primary arguments in favor of its construction: the electricity generated by the project would be cheap and plentiful, industries would be attracted to Alaska by the cheap electricity, and the dam's construction would have minimal impact on the environment and human populations. During the campaign that preceded the 1960 U.S. Presidential election, both candidates—Richard Nixon and John F. Kennedy—made campaign stops in Alaska. Both men gave their support to the Rampart Dam project, with Kennedy saying, "I see the greatest dam in the free world at Rampart Canyon, producing twice the power of the Tennessee Valley Authority to light homes and mills and cities and farms all over Alaska." Nixon, arriving three months after Kennedy, said, "As far as Rampart Canyon Dam is concerned, certainly you can expect progress, more progress, I believe, in our administration than his".