CNN's bias in interviews on Michigan's right-to-work debate?

The discussion below between a CNN host and Teamster President Jimmy Hoffa occurs about about 4:50 into the video.  At 25 seconds into the interview Hoffa uses inflammatory where he talks about a "Civil War," but the host doesn't call him on that.

Hoffa: . . . That said that places like Oklahoma with right-to-work would thrive.  When Oklahoma became right to work  If anything the wages went down in Oklahoma. 

CNN Host: Yah. 

Hoffa:  So it really doesn't work and that is just a spin from big business. 

CNN Host: No, no, I am just saying the fear.

Why would a CNN host have to agree so emphatically with Hoffa that right-to-work's benefits are just the spin of big business? In case the bias isn't obvious, here is an interview that CNN had with a supporter for right-to-work.



UPDATE: More on union threats:

"Just know one thing, Rick Snyder: You sign that bill, you won't get no rest.  We'll meet you on Geddes Road. We'll be at your daughter's soccer game. We'll visit you at your church. We'll be at your office."