http://en.wikipedia.org/wiki/The_Newsroom_%28U.S._TV_series%29
"Thomas Matthews as Martin Stallworth: an associate producer for News Night."
Also - "He ( Sorkin) also spent time shadowing Hardball with Chris Matthews as well as other programs on Fox News Channel and CNN."
And - "New York magazine reported that Sorkin had planned for MSNBC host Chris Matthews and Andrew Breitbart to appear in a roundtable debate scene in the pilot. However, the idea was shot down by MSNBC purportedly because the network was displeased with the corporate culture portrayal of cable news and skewering of left-leaning media in the show's script.[37] Chris Matthews' son, Thomas, joined the cast in the role of Martin Stallworth, an associate producer for the fictional show."
I have a feeling that Tweety had a heads up as to what was coming, and probably prepared himself to become the real life Will McAvoy. I'm sure he loves nothing more than to be compared to the character.
As far as your #2 - Yeah, right?