A top Republican senator accused the Obama White House on Wednesday of using Nixon-style tactics to vilify political opponents and members of the media, suggesting the administration is on the brink of compiling its own "enemies list." 

Sen. Lamar Alexander, R-Tenn., took to the Senate floor to urge President Obama and his aides to dial back their attacks on White House critics. Alexander, who later was joined by Sen. Judd Gregg, R-N.H., cited a litany of instances where he said Obama was inappropriately targeting groups -- from the Chamber of Commerce to Fox News -- just as President Nixon did four decades ago. 

"I have an uneasy feeling only 10 months into this new administration that we're beginning to see the symptoms of this same kind of animus developing in the Obama administration," Alexander said. 

Gregg also expressed concerns and suggested Obama was "Nixifying" the White House. 

Alexander, chairman of the Senate Republican Conference, pointed to the administration's public criticism of the health insurance industry, Republicans in Congress, the Chamber of Commerce and Fox News. 

White House advisers have gone on several other channels to accuse Fox News of going to bat for the Republican Party and to urge other networks to ignore Fox's coverage. 

"Mr. President -- this behavior is typical of street brawls and political campaign consultants. It's a mistake," Alexander said. 

Fox Forum: President Obama, Don't Create an Enemies List.