Republicans have announced they will join deficit talks next month led by Vice President Joe BidenJoe BidenBiden rips Senate GOP healthcare bill, says it 'isn't about healthcare' Report: Biden scolded hedge fund manager over late son OPINION: Democrats are going to keep losing if they can't articulate a vision MORE, with members of the GOP leadership in both the House and Senate slated to participate.

House Majority Leader Eric CantorEric CantorWhat to watch for in Comey’s testimony Trump nominates two new DOD officials Brat: New ObamaCare repeal bill has 'significant' changes MORE (R-Va.) will be the sole House GOP representative in the meetings; Senate Minority Whip Jon Kyl (R-Ariz.) will represent Senate Republicans.

House Speaker John BoehnerJohn BoehnerRyan reminds lawmakers to be on time for votes Juan Williams: GOP fumbles on healthcare The Hill's 12:30 Report MORE (R-Ohio) announced the heavy-hitting appointment on Tuesday.

“House Majority Leader Eric Cantor will serve as House Republicans’ sole appointee to the deficit spending commission announced by President Obama,” said BoehnerJohn BoehnerRyan reminds lawmakers to be on time for votes Juan Williams: GOP fumbles on healthcare The Hill's 12:30 Report MORE. “The issues we’re dealing with here are well known and well understood: Washington’s addiction to spending is threatening our economy and burying our children under a mountain of a debt."

Cantor said he is "skeptical" the Biden effort will succeed.

“I remain skeptical that the Administration will take this effort seriously, especially after it all but ignored its previous debt commission and President Obama had to be dragged kicking and screaming to consider minimal spending cuts for the rest of this fiscal year,” he said.

Senate Minority Leader Mitch McConnellMitch McConnellOpioid crisis threatens GOP ObamaCare repeal Trump making calls to senators on healthcare bill Trump called Cruz to press him on ObamaCare repeal bill: report MORE (R-Ky.) sounded a more optimistic note in announcing Kyl's appointment.

"There is bipartisan opposition in the Senate to raising the debt ceiling unless we do something significant about the debt, and I was encouraged to see the President acknowledge that in an interview Friday. With the President’s acknowledgment, and with the S&P warning of the consequences of inaction, it is my hope that there will be a new urgency from the White House and our friends across the aisle to finding solutions to what we all know must be done," he said.

House Minority Leader Nancy Pelosi (D-Calif.) said on Saturday she would send Rep. Chris Van Hollen (D-Md.), the ranking member on the Budget Committee, and Assistant Minority Leader James Clyburn (D-S.C.) to the talks.

Senate Majority Leader Harry ReidHarry ReidDems see surge of new candidates Dems to grind Senate to a halt over ObamaCare repeal fight GOP fires opening attack on Dem reportedly running for Heller's Senate seat MORE (D-Nev.) has named Finance Committee Chairman Max BaucusMax BaucusLawmakers: Leave advertising tax break alone GOP: FBI firing won't slow agenda White House tax-reform push is ‘game changer,’ says ex-chairman MORE (D-Mont.) and Appropriations Committee Chairman Daniel Inouye (D-Hawaii).

Last week, President Obama asked congressional leaders to choose 16 members to participate in the talks. The group's size was reduced after Republicans and Democrats questioned its workability.

The Biden talks aim to complete a deficit-reduction plan by the end of June, days before the final deadline for raising the nation's debt ceiling.

Republicans are calling for a plan to be agreed to before the $14.3 trillion debt ceiling is raised, while the administration says the debt ceiling and deficit plan are on separate but parallel tracks.

Obama and Treasury Secretary Timothy Geithner said Tuesday they are “optimistic” the talks will succeed.

The first meeting of the Biden group will be held May 5.

The group's hardline partisan line-up stands in marked contrast to the Senate's bipartisan Gang of Six, which is trying to hammer out a deficit compromise that includes both entitlement cuts and tax increases. Inouye is known as a champion of pork-barrel spending, and Baucus has said Medicare will never be cut on his watch. Cantor and Kyl are adamantly against tax increases.

—This post was updated at 3:51 p.m.