Both election groups have been criticized by Mr. Karzai's attorney general, and he has even had some members arrested.
But on Friday, local election groups said there was evidence some of those flown in were foreign nationals, including from Indonesia and the Philippines.
But Sardar Abdul Karim, a commissioner with the Independent High Electoral Commission, which oversees elections, said Sunday there would probably be a recount at some voting centers if the election group's judiciary committee confirmed State of Law's allegations.
"In the next two years I think we'll see the kinds of sweeping changes that people expected to see right after the 2000 election," said Doug Chapin, director of electionline.org, a nonpartisan election group.
When, after the election, groups such as Business for Sterling and New Europe come out of purdah, the No campaign will still have public opinion on its side, as well as some decent arguments.
Unlike super PACs — the conduit of choice for billionaire donors in the 2012 presidential election — groups like America Next do not have to register with the FEC as super PACs do, nor are they required to disclose their donors.
But in the wake of the "shellacking" that Mr. Obama said Democrats received in the 2010 midterm elections, groups like Third Way have predicted a return to centrist politics.
