The British ITV Network is being carried live on C-SPAN, and worth watching.
The media consensus is that is very very close, with major impact on the currency markets.
What is interesting is that we have been seeing execs from Twitter and Facebook coming on and both reporting and analyzing the data on their feeds. This is almost substituting for the exit polls to which we are used.
I expect that we will see similar analysis during our debates (assuming that Trump does not dodge them.)