Russia: Deployment of Nuclear weapons to space

Russia “plans” to deploy a nuclear weapon in full orbit—rather than a “fractional” one in which it does not completely circle the Earth it would be breaking the Outer Space Treaty of 1967. Nuclear detonations in space are also banned under the 1963 Partial Test Ban Treaty, to which Russia is a signatory. On Earth the intense radiation from the nuclear explosion not only does damage itself but also creates a huge blast wave, starts fires and creates fallout. In the vacuum of space, radiation is the whole game. The electromagnetic pulse created by an orbital explosion could damage the electronics on satellites across much of the sky. Do you think that Russia can do that ?