On this week's episode of Trend Line:

Nik shares his insights into how large sporting events can be associated with a positive surge in the polls for incumbent governments.

• Will he or won't he? We're talking about Mark Carney, of course! Nik breaks down the potential political ambitions of the former banker.
• Catherine McKenna has announced she is stepping back from politics. Michael and Nik discuss the legacy she'll leave in the Five Minutes of Politics segment.
• And there's a couple of changes when it comes to national issues of concern for Canadians: the deficit is down and environment and jobs are back up.

All that and more on this week's episode of Trend Line with CTVNews.ca's Michael Stittle and Nanos Research's Nik Nanos.