Liberals and NDP are allergic to 'balanced budget' concept

"It is difficult to find a member in the Liberal or NDP caucuses who can even really say the words “balanced budget”. It is almost like it is sacrilege to even raise the topic or it is somehow a partisan argument to say that governments should strive to balance their books. It is like they are allergic to the concept.
However, it has not always been that way. Liberals have not always been this way, and the NDP has not always been this way."