Less than 48 hours after announcing his entrance into the Arkansas Senate race, Democrat Bill Halter had over $1 million in his campaign fund thanks to allies at MoveOn.org, the Progressive Campaign Change Committee, Democracy for America, and Daily Kos who raised cash for him.

Now, he'll get an added boost from labor: the AFL-CIO, the Communications Workers of America, AFSCME, and the United Steelworkers of America have each pledged to spend $1 million on the race, for a total of $5 million on top of the above donations.

While that money will be spent independently from Halter's campaign (contribution limits wouldn't allow them to give that), but it, if counted together, it would bring him even with Sen. Blanche Lincoln (D) in campaign money.

Lincoln has just over $5 million in her war chest, according to her latest Federal Election Commission data.

Unions have long been frustrated with Lincoln, as she has not endorsed the Employee Free Choice Act, which has been the prime legislative goal for labor for the past few years.