Tester, who just defeated former Rep. Denny Rehberg (R-Mont.) in the November election, sent a fundraising email to supporters Thursday afternoon asking them to pledge to give a monthly donation to his campaign.
In the email, Tester likens early fundraising to his farm work.
Tester proved once again to be a dogged campaigner in 2012, and won despite the state being deluged by outside advertising. While smart politicians often start their fundraising early, for him to kick off his efforts nearly six years before the next election is notable.