WASHINGTON, D.C. - It was a historic day in Washington on Tuesday, with a strong Idaho connection .

Trevor's Law, a federal cancer cluster bill, passed the Senate weeks after it passed the House and now is one signature away from becoming law.

It's all because of a local cancer survivor on a mission to make a change.

KTVB's Mark Johnson was there in Washington when the vote came in.

It was an emotional moment for 26-year-old Trevor Schaefer, who watched it live in Boise.

Knowing that the possibility of passage was high after Sen. Rand Paul announced his objections to the bill last month were gone.

"It's a huge achievement and if I sit back and I think about how big it is... it can get overwhelming I think," Schaefer said. "In a good way!"

RELATED: Boise brain cancer survivor impacting environmental law.

Diagnosed at 13 with a brain tumor while growing up on Payette Lake in McCall, Schaefer and his mother moved to Boise to be closer to treatments.

He beat it and soon turned his attention to research into cancer clusters and why the government had no responsibility to investigate claims by communities that an environmental "issue" was poisoning their families.
The most recent example in Flint, Mich.

Trevor's Law - which was attached to the bigger Toxic Substance Chemicals Act - gives communities an opportunity to trigger a federal investigation into potential cancer-causing problems.

There's been a lot of celebration in the community for this and I think that speaks to how needed Trevor's Law is," Schaefer said. "And I think people are looking forward to how we will move forward to protect our kids and our communities."