If anyone in Washington was wondering just how seriously Democrats were taking a presidential advisory commission tasked with finding voter fraud, the answer came in late August, when Senate Minority Leader Charles E. Schumer compared the commission with the white supremacists and neo-Nazis who clashed with counterprotesters in Charlottesville, Virginia, earlier in the month.

“If the president wants to truly show that he rejects the discrimination agenda of the white supremacist movement, he will rescind the Executive Order that created this commission,” the New York Democrat wrote in a post on Medium.com. He added that the commission was “a ruse,” whose “only intention is to disenfranchise voters.”

But that was not all. Schumer drew a line in the sand by warning that he would seek to attach riders to important bills coming up in Congress this month to block the commission: “If the president does not act, the Congress should prohibit its operation through one of the must-pass legislative vehicles in September,” he wrote. That could include a host of measures, such as a children’s health care program, a flood insurance reauthorization program and a bill for the Federal Aviation Administration.

Schumer didn’t say exactly how far he’d go to achieve that goal. A senior aide said the senator was still mulling which piece of legislation he’d seek to attach the language to.

Not surprisingly, the man who is the public face of the commission, Kansas Secretary of State Kris W. Kobach, is dismissing these types of attacks, calling Schumer’s accusations “a pathetic, partisan attempt to wrap Charlottesville around every issue he can think of.” Moreover, he said “the commission cannot do a Jedi mind trick and force legislatures to adopt photo ID laws.”