As far as I can tell, NuGet is meant to be installed as a Visual Studio extension:
http://docs.nuget.org/docs/start-here/installing-nuget
But what if I need NuGet on a machine that doesn't have VS installed?
Specifically, I would like to install NuGet with a PowerShell script.
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12