As always

1-He might, as always, take their side.
2-He might take their side, as always.
3-He might take their side as always.
4-As always, the might take their side.
I
n which case:
a-In every case there was a chance that he might take their side and this time is no exception.
and in which:
b-He has always taken their side and this time he might take their side as well.
and in which:
c-The sentence is ambiguous.

Gratefully,
Navi.