There are many issues identified from the Nanos poll.  Recently, 71% of Canadians did not support the Khadr settlement.  That is a message to the government that it got it wrong.  This is reflected in nearly a 5% drop in support.  The Opposition parties did not gain political support from the government's decision.  This is reflected the Conservative polling numbers remaining at its' traditional core base of support. 

The two most important messages are that this is the lowest polling percentage the Liberal Party has received since its' victory in Fall 2015.  They are now in minority governance range.   The other message is that the NDP candidate, Mr. Singh, may resonate amongst socialist Canadians, and that they are through with supporting Trudeau.

But then again, it is a summer poll taken when Canadians are distrated by finer things such as holidays.