PORTLAND — Supporters are streaming into the Ocean Gateway passenger terminal on Commercial Street today to see first lady Michelle Obama speak at a Maine Democratic Party fundraiser this afternoon.

Supporters are being screened by security as they arrive. A handful of protesters for Tar Sands Action Maine, an activist group that is concerned about climate change, has taken up a position across the street from the terminal.

Before the Ocean Gateway event, Obama was scheduled to be in Cape Elizabeth for a luncheon hosted by Karen Harris and Bonnie Porta, co-chairs of the Obama for ME Finance Committee. The private event is to be held at Porta’s home near Crescent Beach State Park. Porta is married to Robert C.S. “Bobby” Monks, a real estate developer and minority owner of MaineToday Media, which publishes The Portland Press Herald.

Obama is expected to arrive by motorcade at the Ocean Gateway terminal and speak between 2 p.m. and 3 p.m. Afterward, she’s scheduled to fly to Providence, R.I., for another fundraiser tonight.

Obama’s appearance in Portland will raise money for the Obama Victory Fund, a joint fundraising committee splitting donations between her husband’s re-election campaign and the Democratic National Committee.