So far in the 2010 election cycle, labor unions gave contributed at least $490,000 to the DSCC under the leadership of Senator Robert Menendez, who despite labeling unions as a “special interest in Washington” still “expects their support, you know, financially” for the rest of the cycle. But the half million for this cycle doesn’t begin to show the extent to which labor unions have propped up the DSCC in recent years.

According to an analysis of contribution data at the Center for Responsive Politics, labor unions gave at least $15,897,750 to the DSCC and its candidates since the 2006 cycle.

Labor unions contributed $8.1 million directly to Democratic Senate candidates in 2008, and $6.7 million to Democratic Senate candidates in 2006. In addition to those direct contributions, labor unions gave at least $327,000 in 2008 and $280,750 to the DSCC in 2006. Add in at least $490,000 to the DSCC in the 2010 cycle, and you have a smooth $1 million.

You can find a table of labor union contributions to the DSCC in the 2010 cycle here; below is a table of major unions’ contributions to the DSCC for the 2006 and 2008 cycles.

Union 2008 Cycle 2006 Cycle
SEIU $30,000 $30,000
AFL-CIO $25,000 $30,000
AFSCME $30,000 $30,000
UNITE HERE $30,000 $15,000
UFCW $30,000 $26,250
NEA $30,000 $30,000
AFT $30,000 $30,000
CWA $30,000 $30,000
USW $25,000 $15,000
IBEW $30,000 $30,000
Boilermakers $22,000 $14,500
UAW $15,000

The context of these years is important. In 2006 and 2008, the DSCC was led by Senator Chuck Schumer, who congratulated Blanche Lincoln yesterday for “fighting unions” in her primary election victory this week. Under Bob Menendez, the DSCC continues to shake down labor unions for millions of dollars with the same contempt for their members.

Now the question is: will labor unions stop the DSCC’s money train for the 2010 cycle? And when will Bob Menendez start cutting checks to give back $16 million to the “special interests” he sees as his job to defeat?