Sen. Mary Landrieu, D-La., speaks at a campaign event in New Orleans, Saturday, Nov. 1, 2014. (AP Photo/Gerald Herbert)

BATON ROUGE, La. -- Sen. Mary Landrieu (D-La.) lobbed a barb at the Democratic Senatorial Campaign Committee Tuesday, saying they effectively abandoned her after the Nov. 4 midterm election.

"I am extremely disappointed in the Democratic Senatorial [Campaign] Committee. I've said that. You know, they just walked away from this race," Landrieu said in response to a Washington Post question about Democratic groups mainly staying on the sidelines during the runoff. She made her remarks after a rally here just steps from City Hall.

The DSCC canceled its television ad reservations shortly after the Nov. 4 midterm election in which Democrats lost control of the Senate.

Landrieu advanced to a runoff against Rep. Bill Cassidy (R) in the Nov. 4 all-party primary. Save for limited ad buys from a handful of groups totaling about $216,000, Landrieu has had to face millions of dollars worth of pro-Cassidy ads on her own. The National Republican Senatorial Committee alone is on pace to spend more than $1.4 million on ads, records show.

A DSCC spokesman did not immediately respond to a request for comment.

Landrieu, who most close watchers see as a clear underdog in Saturday's runoff, credited her Senate colleagues for helping her, even as the national campaign arm left her behind. Sens. Cory Booker (D-N.J.) and Joe Donnelly (D-Ind.) have recently campaigned for her here in Louisiana.

"My colleagues have not walked away," she said.