(Mel Evans/AP)

New Jersey Gov. Chris Christie's bridge scandal dominated the Sunday morning political talk shows, although much of the chatter also revolved around former defense secretary Robert Gates's new memoir in which he harshly criticizes President Obama's wartime leadership.

While Christie's scandal was the focus of most shows, lawmakers had little to say about the scandal in which a top aide orchestrated a traffic jam in an apparent act of political revenge.

"I think this is a story that's still developing and we should reserve judgment," Sen. Marco Rubio (R-Fla.) said on CBS's "Face the Nation."

Maryland Gov. Martin O'Malley (D), appearing on CNN's "State of the Union" also said there was little of substance he could add to the emerging scandal. He, Rubio and Christie are all potential 2016 presidential contenders.

Read all about it and more over on Post Politics:

Christie dominates Sunday shows, but lawmakers reserve judgment

Rubio, McCain: Gates should have waited to write his book

O’Malley defends troubled Maryland health exchange