The Democratic Senatorial Campaign Committee, Senate Democrats' campaign arm, raised a record-setting $3.6 million last month.

"Senate Democrats are our line of defense against a reckless Congress and White House and Americans across the country are standing with us to fight back, which is why we’ve recorded the best off-year January for digital fundraising in DSCC history," Executive Director Mindy Myers said in a statement on Friday.



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The Senate Democrats are facing a challenging 2018 election cycle, and will need to defend 23 seats, 10 of which are in the states that President Trump won in 2016.

The Republicans, on the other hand, are only defending eight seats in 2018 and will need to gain eight more for a filibuster-proof majority.

"Thanks to the generous support from our grassroots, we’ll have the resources to protect and elect leaders who will grow the middle class and keep America safe," she added.According to the DSCC, the committee currently has $5.3 million in the bank.The Democrats' impressive fundraising effort still fell short of the GOP's record-breaking $4.2 million haul last month — its best off-year January since 2005.The National Republican Senatorial Committee has $9.8 million on hand, according to Roll Call