Either way the call is not hard to do. To say HE did not talk to them is not the issue. The issue is did they that really go the moon. It has nothing to do with Nixon. Your argument about Nixon is not proof the moon mission does not exist.
What about the actornauts talking to each other on the moon? Is that not evidence either. Hahahahaha.
Not evidence, lol. I think it damning evidence that they didn't go. If you can't communicate, then the mission is dead, don't you think. 
Have you ever used a walkie talkie when you were young?
Yep, I sure have.
you real question is was there a medium on the moon?
No, it isn't just that. It's all communication from Earth to moon, to Earth and on the moon between astronauts supposedly walking upon it.
Think about this, folks. Apart from communication being rendered pathetic in a vacuum, picture this scenario.
The astronauts had a back pack with a small aerial on it. Nixon was supposedly talking to them on the moon and they recieved his call through thos aerial on their back packs, then communicated back.
Has anyone ever seen a solider in a field, communicating back to base and losing signal?
Out of range, yet these goons are talking to Nixon with their little aerials and radios, all the while the Earth is spinning at over 1000 mph, with no loss of signal, even if they were in fresh air on the frigging moon. Hahahahaha.
Can people not see how ridiculous this all is?