Harper lacked the will, the work effort, the ability, the imagination, and the desire to reform the Senate.   So he decided to stuff it with 100% partisan hacks (J4U, even Chretien and Mulroney appointed at least ONE senator from outside their parties) and took full advantage of them (eg:  Duffy/Wallin as taxpaid CPC shills).    All he did was whine about Senate Reform and the Constitution while doing nothing but turning the Senate into the biggest joke its ever been.   Oh, he never met with the Provinces either - one of the first steps towards reform, if he were serious.

Trudeau, in opposition, did more to reform the Senate (by releasing all the Liberal Senators), than Harper did in 10 years as PM.     Now he's continuing the reform all without having to touch the Constitution.