The Democratic Senatorial Campaign Committee raised $6 million in March, while the National Republican Senatorial Committee took in just over $5.1 million.

The DSCC ended March with more than $17 million in the bank while the NRSC had about $15 million in its coffers.

The DSCC raised over $15 million in the first quarter of 2010 and has no debt from the previous cycle.

The NRSC’s haul tops the $4.6 million the committee collected during February and brought cycle-to-date fundraising over the $56 million mark.

“We have successfully added more than 240,000 first-time supporters to the NRSC donor rolls and increased our fundraising by nearly 25 percent more than last cycle,” Executive Director Rob Jesmer said in a statement. “We deeply appreciate this growing support and are committed to doing everything possible to helping our Senate Republican candidates win in November.”

Senate Democrats argued they are ahead of their fundraising pace in the first quarter of 2006, the last midterm election cycle.

“As the election gets closer, enthusiasm for Democrats is growing and our strong fundraising numbers are evidence of that,” DSCC Executive Director J.B. Poersch said in a statement. “Republicans continue to side with the special interests over doing what is right for the American people, and that is a losing strategy.”