I must say that I am baffled by the arguments that many Liberals are putting forward in which they condemn Layton and the NDP as somehow 'handing Harper a majority.' For one thing it seems a distinctly anti-democratic argument, very simpilar to the one put forward by the very same Liberals against the Conservatives for telling the country that the "election is unnecessary." But at a more basic, rational level the argument seems odd because the NDP and the Liberals are, by many accounts equal in the polls. And if the Liberals and the NDP are even in the polls then the argument can in fact run either way. NDP supporters could just as equally complain that Ignatieff should stop campaigning so hard and let the NDP win, or else he could be "handing Harper a majority." In other words, not only is the argument being put forward by many Liberals distinctly anti-democratic, it is very clearly logically flawed.
The real fact is, and the one that Liberals should be upset by is this - if Harper were to win a majority while the Liberals and NDP (and other parities) have significantly more popular support, it is a flawed political system that hands Harper the majority, not any particular party that is only rightly taking part in the democratic system. It is the system that is flawed and unjust, not any specific political party. But unfortunately, few Liberals are willing to make this argument because they have, historically, benefited from the injustices of our first-past-the-post system. The Liberal Party of Canada has often held absolute power without actually enjoying a majority of popular support, and they don't want to change it because they are hoping to enjoy that power again at some point.
I call on Liberals to finally put the blame where the blame belongs - squarely at the feet of an antiquated political system rather than with people who are trying to exercise their basic political rights.