During their visit, the visitors met congress officials in small groups devoted to business, labor, sports, entertainment and other specialized interests.
It accused two senior congress officials of complicity in human rights abuses.
The question of interference by military intelligence figured high on the agenda, congress officials said.
But recently, congress officials have indicated that the peace process cannot wait.
Unhappy congress officials tried the back door recently, seeking to meet with commission officials to express their concerns.
But one of them did say that the new Soviet attitude has caused concern among top congress officials.
Iraqi congress officials refused to say whether they were included in the covert financing.
None of the congress officials seemed to know what delegates were discussing.
But other congress officials now seem ready to bypass existing problems to get negotiations under way.
According to a congress official, the Government officials said they all had previous engagements.