Sen. Elizabeth Warren is back in the neighborhood and she has an excellent view of Kosciuszko Circle.

The senator’s new campaign headquarters are on Columbia Point near the former Bayside Exposition Center site, the same offices occupied until November by Mayor Martin Walsh’s campaign as he successfully sought re-election.

Warren sat down with Reporter editors this week to talk about a looming community health crisis, a possible government shutdown, and the state of Democratic leadership.

But she got situated first. Dorchester has been a reliable source of strength for her electorally — a large, diverse neighborhood in a progressive city, but also one with substantial populations of color and lower-income communities that has been historically marginalized and under-invested in.

“The way I see this, communities like Dorchester are making their voices heard,” Warren said from the Reporter offices. She hit the party line: “It’s why I’m in the United States Senate. I’m there to speak up loud for people who wouldn’t otherwise have a voice, and to say we have to make America work, not just for thin slice at the top, not just for a handful of billionaires and some giant corporations, we need to make America work for everyone who’s here.”

That means, Warren said, investing in education, healthcare infrastructure, and advancements in fields like medical research that power job growth as much as they make vital scientific advancements.

The senator is facing Republican challenges for her seat from Whitman state Rep. Geoff Diehl, Winchester businessman John Kingston, and longtime GOP operative Beth Lindstrom. Allen Rodney Waters, of Mashpee; Darius Mitchell, of Lowell; and Heidi Wellman, of Braintree have also pulled papers to run as Republicans in the 2018 race. Shiva Ayyadurai, a Cambridge-based entrepreneur, is running as an independent.

National stakes are high, Warren said.

“The way I see it is, this is a time in America when democracy is under attack,” she said. “Republicans have been trying to suppress the vote; we’ve got Russian interference and a president who won’t even admit it, gerrymandering that’s going on, all kinds of things. And a of lot statements just say basically, “oh, it doesn’t matter, everybody in congress is the same, just ignore them all.” It’s another form of voter suppression. I see this race as a chance for people to say I will make my voice heard. I will show up, I will volunteer, I will hold signs, I will make phone calls, I will be part of democracy.”