Looks like CanWest has quit trying to stuff their latest Federal Poll:
"The poll said that the Tories had dropped to 39 per cent support - a decline of three percentage points - while the Liberals had been bumped up one point to 29 per cent of decided voters. The NDP held steady at 15 per cent support while the Green Party went up slightly by one point to eight per cent of the vote."
Of course the support levels here are freakish, not supported by any of the respectable polling companies (which put the Libs higher and the Cons lower), and most likely a result of Ipsos being paid monkey-boys for the Natty Post.. But the Conservative plunge in support is significant. Read how Ipsos claims it has nothing to do with Mulroney crawling out of the sewer, waving his dirt stained dick at the nation, and implicating Harper.
(Update: Steve V thinks the decline is a simple function of Ipsos having readjusted its assumptions so as not to appear too far out of line with the other pollsters. He may be right. In any case, he explains his reasoning here.)