A group of progressive activists followed Sen. Kyrsten Sinema (D-Ariz.) into a bathroom at Arizona State University on Friday to confront her over her opposition to the $3.5 trillion Build Back Better Act and demand she take action. The incident came just days after Sinema on Sept. 30 doubled down on her position not to support the Democratic leadership’s proposed $3.5 trillion spending bill, which includes mass amnesty for illegal aliens, as well as funding for social programs like Medicare and the Child Tax Credit, which Sinema wants Democrats to spend less on. While the economic agenda has been largely supported by Sinema’s Democratic colleagues, Sinema has joined Sen. Joe Manchin (D-W.Va.) in indicating that they would not back the bill without adjustments. Both votes are critical to the bill’s passage, and they have long maintained that the price tag is too high. The activists allegedly confronted the Democrat outside the classroom where she teaches on Friday …