Canada’s ruling Liberals sweep special elections in boost to Mark Carney | Canada
(www.theguardian.com)
The things that the federal government can do are indirect and slow moving.
Or they can just build houses. Housing is ultimately the purview of the provinces, but the federal government can still do a lot of non-direct and slow moving stuff. Besides, it's not like provincial Liberals are doing a much better job.
Also, if you are going to post links as if they are proof of what you are saying, the website of their political opponents is beyond useless.
Feel free to tell me which of the claimed promises weren't actually promised by the Liberals. The one about affordable housing did happen.