WATCH: Jon Stewart shames Mitch McConnell for blocking 9/11 first responders healthcare bill

Former Daily Show host Jon Stewart let his frustration show on Thursday as he accused Senate Majority Leader Mitch McConnell (R-KY) of stonewalling a bill that would renew health care benefits for police and firefighters who responded to the 9/11 attacks.

"I cannot bring heroism or integrity to this process," Stewart said at a press conference. "I can only bring cameras, and hopefully a sense of public shame."

As the New York Daily News reported, supporters of the bill accused McConnell of leaving it out of a highway funding proposal.

Stewart pointed out that McConnell made a campaign ad spotlighting his support for a bill guaranteeing permanent healthcare for nuclear energy industry workers, which has cost $11 billion since going into effect. By comparison, the Zadroga Act, as the first responder bill is known, would would cost $4.6 billion.

"How in good conscience can you deny them the very thing that you have proudly brought to the people of your state?" Stewart asked, before telling reporters, "Please, personally ask him that."

Watch Stewart's remarks, as posted online on Thursday, below.