Maine oysterman Graham Platner says his campaign has raised $1 million in nine days since launching his run to unseat Republican Senator Susan Collins.

The Democratic candidate says most of his contributions have been small donations – averaging $33, with 98 percent under $100 – which means those people can donate over and over.

Platner also says his donations have built up over the days since he announced his campaign, raising more on day 4 than on day 1. 

In addition, Platner says he signed up more than 2,700 volunteers in the short time he’s been a candidate.

Collins has not officially launched her reelection campaign, but has raised $2.4 million in the most recent filing period.

Democratic candidate Jordan Wood announced his campaign in late April and has raised $1.6, according for filing with the Federal Election Commission.

Platner will be making an appearance in Portland on Labor Day as part of Independent Senator Sanders’ “Fighting Oligarchy” tour.