Across the pond in the United Kingdom, the House of Lords has done something that they have not done in over a century, and some are saying that it has caused a "constitutional crisis." The Lords, the mixed appointment-hereditary upper house, has rejected a financial regulation that had been proposed by the government, and passed by the elected House of Commons.
The government, led by the Right Honourable David Cameron and his Conservatives, had proposed to cut tax credits for low-paid workers across the United Kingdom. The measure passed the elected Commons by 325 to 290, despite several Conservatives breaking ranks and voting against the government. The Commons has, since then, also moved to ask the government to provide transitional financial support to workers who are going to have their tax credits withdrawn.
However, on October 26, 2015, the House of Lords passed a motion deferring approval of the cut to tax credits, pending the government's responses to a financial institution's analysis of the impact of the cuts. The Lords also called on the government to provide transitional funding for at least three years to workers whose credits would be withdrawn.
The government is now threatening to ram through troubling reforms to the Lords, including the possibility of removing any role whatsoever of the Lords in reviewing secondary legislation (i.e., any regulations that cabinet introduces that are subordinate to primary legislation). These reforms have been explored further in a report that Mr. Cameron has commissioned from the Right Honourable The Lord Strathclyde C.H., P.C., who has also mused that several more than one hundred peers should be thrown out of the upper house for defying the government.
The House of Lords currently consists of the Archbishops of Canterbury and York, 24 additional bishops of the Church of England, the Lord Great Chamberlain, the Earl Marshal, 90 hereditary peers elected to represent the hereditary peerage (i.e., the traditional aristocracy), and a variable number of "life peers" appointed by the Queen on the advice of the prime minister.
What is interesting here is that the powers of our own Canadian Senate are based on the powers of the Lords as they existed at 1867. Since then, the power of the British upper house has been severely restricted; the Lords cannot delay financial bills for more than 30 days; they cannot delay any other public bill for more than one year; by convention, they cannot oppose bills that formed part of the government's election platform.
None of these changes apply retroactively to our own Senate, which enjoys many of the powers that the House of Lords held nearly 150 years ago. Today, the Senate can defeat any bill passed by the Commons, without precipitating the defeat of the government (as ministers are responsible only to the elected Commons). The Senate can only be overruled on amendments to the constitution requiring provincial consent, if at least 180 days have passed since the Senate defeat.
Sources: The Telegraph (here), Lords Hansard (here)