Bush picks Fox News's Snow as White House spokesman

Fox commentator Tony Snow named new spokesperson for White House. From NPR:

President Bush on Wednesday named conservative commentator Tony Snow as White House press secretary, putting a new face on a troubled administration.
Snow, a Fox news pundit and former speechwriter in the White House under Bush's father, replaced Scott McClellan who resigned in a personnel shuffle intended to re-energize the White House and lift the president's record-low approval ratings.
"My job is to make decisions and his job is to help explain those decisions to the press corps and the American people," Bush said, with Snow and McClellan at his side in the White House briefing room.

If Bush picks a Fox News Commentator to speak for his White House, what does that say about media bias?