Because this isn't the primaries and there isn't a "Republican Election 2016 - Donald Trump" and a "Democratic Election 2016 - Hillary Clinton", there is only a US Election 2016.
The separate threads are emblematic of the mod's leftist safe space culture. They are attempting to promote niceness over political debate. Clinton supporters, go to this space here, Trump supporters, go to that space there (and what about 3rd party candidates?). Avoid contact, avoid conflict, a safe space for everyone.
Here we do not designate a space for Trump discussion and a separate space for Clinton discussion, here we discuss the US election, as one complete and open debate.
You can thanks me later.