WASHINGTON (AP) — The Senate Democratic Campaign Committee raised more money than its Republican counterpart in February and has about $5 million more in the bank.

The DSCC says Thursday it raised $6.8 million last month and has about $18 million in the bank. The National Republican Senatorial Committee raised almost $5.5 million, the party reports, and has almost $12.8 million in cash on hand.

The Democrats, however, are still carrying $1.2 million in debt.

Democrats are trying to defend a narrow six-seat majority in the Senate. Thirty-five Senate seats are up this year and Democrats will be defending 21 of them. The current balance of power in the Senate is 45 Republicans, 53 Democrats and two independents who caucus with the Democrats.