There has been some media discussion today of a new round of negative Liberal ads. I think such ads are, more often than not, effective. However, the Liberal brand in this election is severely tarnished. The Liberals may not intend it but one likely impact of such ads, should they prove potent at knocking Harper down a notch, will be to divert anti-Liberal votes from the Conservatives to the NDP.
As well, the decline of the Liberals and strong rise of the Conservatives is very likely to eliminate strategic voting as a problem for the NDP as voters, with some exceptions, will have no expectation by voting day of defeating the Conservatives.