Recall the Arabian proverb that "the enemy of my enemy is my friend"? That is certainly true in politics as practiced by Democrats. Democrat-linked groups are pouring money into Florida to help the candidate they would prefer run against Barack Obama: Newt Gingrich.

First it was the union for government workers. Now Obama's favorite union is stepping up to the plate. The  Service Employees International Union has made big ad buys in Florida to bash Romney. Brian Mooney reports for the Boston Globe:

Complicating matters for Romney, the American Federation of State, County, and Municipal Employees union has launched a $1 million ad campaign in Florida attacking him on the theme of "corporate greed.'' Nearly $100,000 of the buy is on the Internet. Meanwhile, the Service Employees International Union and the pro-Obama super PAC Priorities USA Action intend to spend more than $100,000 on Spanish-language radio ads accusing Romney of having "two faces'' when it comes to the Latino community.

What should this mean to Republicans? Romney campaign spokeswoman Andrea Saul knows what is going on-even if many Republicans may not:

"The last thing that President Obama and his cronies want is Mitt Romney as an opponent -- which explains their 'all hands on deck' approach for their strategy to 'kill Romney,' the same way they engaged in a campaign of personal destruction against Hillary Clinton,'' Andrea Saul, a Romney campaign spokeswoman, said.

Democratic allies are making such early and big buys for one reason -- and it has nothing to do with the general election in November. Their campaign is focused on interfering with the GOP primary. I have written about this before.

The Obama campaign has a dream candidate -- aside from Obama himself. That would be Newt Gingrich.

Is there a message here for Republicans? Is there a message that some of America's most dedicated conservatives (Ann Coulter among them) are warning that Newt Gingrich is a disaster waiting to happen for the entire conservative movement; that he will not just be one more Sharron Angle and Christine O'Donnell going down in flames, but that he will drag down conservatives all over the nation and gives us not just four more years of Obama but a Democratic Congress that will provide no firewall to restrain his worst impulses.