Georgia Rep. Jack Kingston will file yet another strong fundraising period when fourth-quarter reports are due at the end of the month.

Kingston, one of the three Republican congressmen running for the state’s open Senate seat, pulled in $880,000 from September through December, according to figures first obtained by CQ Roll Call. He ended the year with $3.4 million on hand after raising a total of $4.2 million for the cycle.

It’s the best quarter of the cycle for Kingston, who brought in just more than $800,000 in the third quarter. None of the other Republicans in the deep primary field have released their fourth-quarter fundraising numbers.

In the third quarter, Kingston, an 11-term congressman from Savannah, easily outpaced his House colleagues, Reps. Paul Broun and Phil Gingrey, as well as former Secretary of State Karen Handel and businessman Eugene Yu. However, deep-pocketed and well-connected businessman David Perdue raised more than $800,000 and invested $1 million of his own money.

All are vying for the seat of retiring GOP Sen. Saxby Chambliss in a state that leans Republican.

National Democrats are actively competing for the seat, and there is significant money flowing into the state as one of the party’s only offensive opportunities. Michelle Nunn, the former head of the Points of Light Foundation and daughter of former Sen. Sam Nunn, D-Ga., recently announced raising $1.6 million — only slightly less than she raised in the third quarter.

The race is rated Republican Favored by Rothenberg Political Report/Roll Call.