CNN) - The National Republican Senatorial Committee outraised its Democratic counterpart last month but begin the new year at a slight financial disadvantage, according to disclosures released by both parties Friday.
The Democratic Senatorial Campaign Committee raised just over $3.4 million in December, about $700 thousand less than Republicans in the same time frame.
But Democrats begin 2010 with $12.5 million cash-on-hand - over $4 million more than the $8.3 million the NRSC has in the bank. However Democrats have $1.25 million in debt while Republicans are debt free.
The two parties were nearly neck-and-neck when it comes to fundraising totals over the course of 2009: Democrats raised a total of $43.5 million while Republicans took in $41.2 million.
Each party is defending 18 seats this cycle.