Pryor is viewed by strategists in both parties as the most vulnerable Democratic senator up for reelection this cycle, and his seat is a must-win for Republicans if they hope to take back Senate control. Cotton is a favorite of both the Tea Party and establishment Republicans.
"Arkansans need leaders who are standing up for them in Washington, not self-serving politicians like Tom CottonTom CottonFacebook Messenger to feature optional end-to-end encryption: report Senators to Obama: Make 'timely' call on Afghan troops levels Dems to GOP: Cancel Memorial Day break MORE who care more about their personal political ambition instead than fighting for Arkansas," said Barasky.
Cotton's spokeswoman said on Wednesday that the lawmaker "strongly supports all efforts to defund, delay and ultimately repeal Obamacare, regardless the legislative approach."
Cotton told radio host Hugh Hewitt earlier this summer that upcoming fights over the debt ceiling and a spending bill could be critical in blocking the president's healthcare reform bill.
"I think that when we return from our August recess in September with our continuing resolution and then in October-November with the debt ceiling, those are important opportunities to try to strike another blow against ObamaCare before that law takes effect, before the insurance marketplaces begin to open for enrollment on October 1 and before they open for business on January 1," Cotton said.
"And whether that takes the form of trying to defund it or trying to effectively defund it by delaying for a year or two years the core provisions ... because those are two must-pass pieces of legislation it gives us an opportunity to defund ObamaCare before it takes effect."
A number of Senate Republicans have slammed the idea of using the debates to try to defund the healthcare law, which has been pushed by Sen. Mike LeeMike LeeGOP senators move to keep women out of military draft Meet the billionaire donor behind Hulk Hogan’s lawsuit against Gawker Overnight Cybersecurity: Guccifer plea deal raises questions in Clinton probe MORE (R-Utah).
Sen. Richard BurrRichard BurrThe Trail 2016: Hell breaks loose Burr, Ross in statistical dead heat in NC Senate race Senate panel advances spy policy bill, after House approves its own version MORE (R-N.C.) has called it the "dumbest idea" he's ever heard of, while Sen. Bob CorkerBob CorkerKaine, Murphy push extension of Iran sanctions The Hill's 12:30 Report Rankings: Trump’s top 10 VP picks MORE (R-Tenn.) has called it a "silly effort."