Sunday show preview: Cain is able and willing; pairs of dueling governors

Herman Cain, coming off his surprising win in a Florida straw poll, takes the top spot on two of this weekend's talk shows.

The businessman and presidential candidate will be on ABC's "This Week" and "Fox News Sunday."

CBS' "Face the Nation" and NBC's "Meet the Press" will feature pairs of governors this weekend.

Massachusetts' Deval Patrick (D) and Virginia's Bob McDonnell (R) head to NBC.

Maryland's Martin O'Malley (D) and Mississippi's Haley Barbour (R) will be on CBS. 

Sen. John McCainJohn Sidney McCainMcCain rips Trump for attacks on press NSA spying program overcomes key Senate hurdle Meghan McCain says her father regrets opposition to MLK Day MORE (R-Ariz.) will also be "Face the Nation."

Barbour will make another appearance on CNN's "State of the Union," as will former Vice President Dick Cheney and his daughter Liz.