I'd like to ask about the meaning of "fringes and mainstream speeches" in the following context:
Hardly anybody in England seems to be talking about this. There is little about it scheduled for the fringes and mainstream speeches at Manchester. Compared to public spending cuts and the deficit, it may seem marginal. But if you want a glimpse into how different life might feel under Cameron, and what an unfamiliar country we may be tiptoeing into, the very future of a UK inside Europe is a good place to start.
Does "fringes and mainstream speeches" imply insignificant and important speeches?