The California-based Tea Party Express spent almost $600,000 ahead of the Aug. 24 GOP primary and is widely credited with giving its endorsed candidate, Miller, a vital boost to defeat Sen. Lisa Murkowski.

However, it appears the conservative group’s presence has been minimal in the state since Miller won the primary, even while polls show the GOP nominee in a dead heat with Murkowski, who is running a write-in campaign to keep her seat. According to reports filed with the Federal Election Commission, the group has only spent a relatively minimal amount in support of Miller’s bid since the primary.

A spokesman for the Tea Party Express, Levi Russell, denied that the group had pulled out of the state, telling POLITICO that they still planned to spend “six figures” on the race.