Let’s assume that the Commons passes the bill, and the Martin gov’t survives long enough for the bill to go to the Senate - will the Senate pass the bill?
The reason I ask is that all of the media coverage that I’ve seen seems to assume that once the bill passes the Commons, it’s a done deal. I’m not so sure.
The Senate has the constitutional authority to defeat any bill that comes to it from the Commons. It rarely exercises that power, but it exists. Normally, it defers to the Commons because bills have been passed with the full authority of the elected government, but there have been exceptions. In particular, the last time a major “conscience” bill went to the Senate having passed the Commons (the Mulroney abortion bill back around 1989) the Senate held a free vote and defeated the bill on a tie vote.
This case is similar to the abortion bill - the marriage bill is a government measure, but PM Martin is only requiring members of the government (i.e. Cabinet) to vote on it. All backbenchers are free to vote their conscience.
If it goes to the Senate, as far as I know there is only one Senator who is a member of the government - the Government House Leader in the Senate. So, by the same rules as PM Martin has set for the Commons on this bill, all the other Liberal Senators would be free to vote their conscience.
One thing that the polls consistently point out - opposition to gay marriage tends to increase with a person’s age. And the average age of Senators is much higher than in the Commons, given that they are appointed until they are 75 years old.
[Mods - not sure if this is a question or a debate, but given the subject matter, thought I’d put it here.]