Barack Obama's recent gains in big union endorsements are bringing him some serious organizational muscle. SEIU alone has reported that they have spent $1.4 million on Obama's behalf in Texas and Ohio.

With that support, though, comes an accusation of hypocrisy from the Clinton camp, which noted Obama's condemnation of outside spending on behalf of John Edwards in the Iowa caucus. "When it was in Obama’s interest to criticize Edwards over outside spending, he did so," Clinton spokesman Howard Wolfson told reporters yesterday. "Now when it is in his interest to remain silent, he is."

The Obama campaign responded in a statement: "Senator Obama has long said that he would prefer those who want to support him to do it directly through the campaign."