What is the Independent Senators Group?
Answer
The largest non-affiliated caucus in the Senate of Canada, formed in 2016 by senators not affiliated with a federal political party.
Explanation
The Independent Senators Group (ISG) is the largest non-affiliated caucus in the Senate of Canada, formed on March 10, 2016 by senators who do not affiliate with any federal political party. The ISG emerged after Prime Minister Justin Trudeau's January 2014 decision to expel Liberal-affiliated senators from the federal Liberal caucus and his subsequent November 2015 launch of the Independent Advisory Board for Senate Appointments to recommend non-partisan candidates.
The Independent Senators Group operates differently from traditional partisan caucuses. ISG senators are bound neither by party discipline nor by collective voting decisions; they vote individually on each bill based on their own assessment. The Group elects its own Facilitator (the equivalent of a leader) and has internal subcommittees on policy areas, but does not hold leadership conventions, raise money for elections, or campaign for any party. As of 2025 the ISG had about 38 members, the largest single grouping in the 105-seat Senate.
Other Senate groupings include the Conservative caucus (about 15 senators in 2025), the Progressive Senate Group (about 14 senators, formed 2019 from former Liberal-affiliated senators), the Canadian Senators Group (about 12 senators, formed 2019 with a regional-representation focus), and a small number of non-affiliated senators. The 2017 Senate Modernization Committee reforms moved Senate proceedings toward more non-partisan, evidence-based deliberation, with reduced use of party whips and more individual votes.
The Senate's 2016 to 2025 transformation has been controversial. Defenders argue that the new non-partisan system produces better legislative review, more thoughtful debate, and a less politicised Senate consistent with the upper chamber's 'sober second thought' role. Critics argue that the system reduces accountability (since senators do not face elections) and creates ambiguity about Senate-government relations. The Reference re Senate Reform decision of 2014 confirmed that any constitutional change to Senate selection (such as elections or term limits) requires constitutional amendment, leaving the Trudeau-era non-partisan reforms as the only feasible reform path without constitutional change.
Why this matters for your test
The Independent Senators Group is the largest grouping in the modern Canadian Senate. Recognising its 2016 formation and the non-partisan structure gives candidates two specific anchors.
Source: Senate of Canada; Office of the Government Representative in the Senate
