The California Democrat plans to send staffers to the Burlington area to test the waters for a “field program” in the Green Mountain State later this month, according to two Democratic sources in Vermont.

The Harris camp has reached out to Vermont supporters, donors and members of the state’s Democratic party about sending a team to Burlington in late July, those sources said.

The plan to scout a possible Vermont campaign operation comes after Harris and Sen. Elizabeth Warren, D-Mass, have surged in the national polls following strong debate performances last month. Meanwhile, Sanders’ numbers have stagnated.

One Democratic organizer, who has been in direct contact with the Harris campaign about the planned visit, said staffers have been discussing setting up a possible campaign outpost in Burlington.

The Democratic operative added that Harris has the potential to beat Sanders in the Democratic primary and that doing well in Vermont could be a “final blow” to the elder senator.