Giuliani greets a potential voter at an Atlanta restaurant Thursday.
WASHINGTON (CNN) - An average of six national polls released following former Tennessee Sen. Fred Thompson's official entry into the White House race shows that former New York City Mayor Rudy Giuliani holds a 7-point lead over the former "Law & Order" star.
The polls: ABC News/Washington Post, CBS/New York Times, USAToday/Gallup, NBC News/Wall Street Journal, CNN/Opinion Research Corporation, and FOX News/Opinion Dynamic, shows Giuliani at 30 percent with Thompson in second at 23 percent. Sen. John McCain, R-Arizona, polls 16 percent, while former Massachusetts Gov. Mitt Romney is at 11 percent.
On the Democratic side, Sen. Hillary Clinton, D-New York, holds a commanding lead over Sen. Barack Obama, D-Illinois, 44 percent to 25 percent. Former North Carolina Sen. John Edwards comes in third with 16 percent.