Stephen Harper couldn't have scripted this any better.
The Globe headline says it all, "Liberal, Tory attack ads zero in on Layton as NDP rise in the polls." Harper's first electoral gift was Layton turning on Ignatieff, deflecting the NDP effort against the Cons. Now it's the Liberals predictably doing his bidding, slagging Layton and exposing the abject silliness of his platform.
Any true progressive who doesn't see this opposition infighting as paving the way for a Harper majority is delusional.
Harper made the 2005 election a referendum on the Liberal Party and the sponsorship scandal. He made the 2008 run off a referendum on Stephane Dion. Now he's turning this election into a referendum on which opposition party is the worst, in the process turning the faithful of each party against the other opposition party and ensuring Harper smooth sailing ahead.
Harper probably couldn't have managed a majority against a focused, resolute opposition. Layton neutered that threat by turning on Ignatieff. Now Iggy is left with no option but to return the favour. And that leaves Steve away to the races.