Andrew Romanoff is going for broke against U.S. Sen. Michael Bennet in their Democratic primary, launching an attack this weekend that plays off Friday’s front-page New York Times story questioning a refinancing deal Bennet spearheaded while superintendent of Denver Public Schools.

“…I approved this message because you and I are going to shut their casino down,” said Romanoff in the ad, continuing his campaign theme that special interests (with Bennet complicit) are running a game in Washington.

“…for sheer nastiness and personal ill will, few (GOP primaries this year) can match what Democrats are doing in Colorado,” wrote Dan Balz in the Washington Post today.

Romanoff has relentlessly hammered Bennet, whose response was, “The New York Times just got it wrong,” in this video from The Colorado Independent.

Bennet campaign spokesman Trevor Kincaid was a little earthier with Fox News, quoted as saying, “First of all the New York Times article is b******t.”

If Bennet wins Tuesday, he can say he did it his way and then will face an even more bruising fight with the Republican nominee in the general election.

If Romanoff wins, the question becomes much more interesting: Would the Democratic Party establishment in Colorado and nationally, whom Romanoff stiff-armed by running against Bennet in the first place, embrace him and provide the resources he’ll need to compete in November?