Per the article, some 600 business owners signed a letter to congress asking for urgent relief;

> As the House legislation is introduced, a grassroots effort is gaining momentum among software developers, with nearly 600 small business owners including Landsman and Bennett signing a letter to the Hill desks of House Way and Means Committee chair Jason Smith (R-Missouri) and Senate Finance Committee chair Ron Wyden (D-Oregon) on Tuesday morning, asking for “urgent relief” and warning that failure to bring back full R&D expensing may wipe out their companies.

I assume that's what he signed.