According to The Boston Globe, activists from the Green New Deal Network, a coalition of 15 organizations, planned on "bird-dogging" Sinema during the marathon, the organization announced in a press release.
Last week, a video emerged revealing Green New Deal Network Chief of Staff Kunoor Ojha accosting Sinema at Reagan National Airport in Washington, D.C., urging her to back the Build Back Better Act.
"Hi, Senator Sinema? I want to ask if you can explain to the American people what you're planning on cutting from Joe Biden's 'Build Back Better' plan?" Ojha asked while Sinema tried to have a phone conversation.
"Do you want to cut climate priorities? Is it elder care that you want to cut, or is it child care?" she proceeded.
While Sinema was at an airport, a Consideration of Deferred Action for Childhood Arrivals (DACA) recipient named Karina approached the senator, questioning if she would commit to a pathway to citizenship for immigrants.
"Can you commit to that, senator?" Karina asked, later continuing, "I don't want to disturb you, but at the same time, I just want to know if I can get a commitment from you, senator."
Sinema attempted to ignore the activists.
Earlier in the week, immigration activists followed Sinema from the classroom where she teaches at Arizona State University to a bathroom, asking that the senator back a "pathway to citizenship." They were hounding her while she was in the stall and later began to wash her hands.
Sinema has shown her opposition to the Build Back Better Bill, which Democrats have often paired with a $1 trillion bipartisan infrastructure bill with Republican assistance. Sinema and her colleague, Sen. Joe Manchin, D-W.Va., have balked at the $3.5 trillion sticker price, which The Wall Street Journal editorial board has insisted is a low estimate of the bill's actual cost of $5 trillion. Biden and his advisors, in the meantime, have insisted that the cost is "zero" because they pledge to pay for the $3.5 trillion with tax increases on the wealthy and corporations.
Activists approaching Manchin's houseboat aboard kayaks also accosted Manchin.
Biden addressed the confrontations against the senators last week, noting that neither senator has Secret Service protection.
"I don't think they're appropriate tactics, but it happens to everybody," Biden announced.
"The only people it doesn't happen to are the people who have Secret Service standing around them," Biden continued. "So, it's part of the process."