Obama, the Veep pick and media bias.

There has been quite a lot of coverage the who B. Hussain Obama will be picking for VP. Will it be another Washington outsider the Virginia's Govenor Tim Kaine? Or will it Former Georgia Senator Sam Nunn, a conservative leaning Southerner? Or possibly John Kerry, be cause he almost won last time and has that magic hat? Or Delaware Senator Joe Biden for his is foreign policy experience and ability to plagiarize better than anyone in the Senate? But one thing missing in all this discussion is the phrase, "Gravitas." The Drive-By-media was always talking about G.W. Bush's lack of gravitas and his need for a steady guiding hand for VP. W was considered too much of a lightweight, inexperienced despite the fact he was the two term Governor of Texas.
Let's compare B. Hussain Obama experience to W's. Barry served 143 days in the Senate before he announced his candidacy for the President. He was a community organizer, like Jessie Jackson, Al Sharpton, and Najee Ali in Chicago. He was an Illinois State Senator who vote "present" 129 times on various controversial issues, so he would upset anyone.
So why is there no mention of the lack of "gravitas" with Obama? Is it because he is a Democrat?