Wait, weren't Boeing approached by Bombardier last year about the C series?
Something about a sale? Investment? Missed opportunity?
Bombardier approached Airbus, and when talks failed they reportedly reached out to Embraer.
There was never confirmation that Bombardier approached Boeing. If they did, that might actually be even more damaging to Bombardier, as Bombardier might have divulged some very confidential financial info to Boeing (manufacturing costs, margins, etc.) -- enabling Boeing to make a very strong case to the US Dept. of Commerce using Bombardier's own financial data.