Opposition leader Raila Odinga is expected back in the country on Wednesday after an eight-day tour of the United States.
National Super Alliance (NASA) principal Musalia Mudavadi said Raila would leave the US on Tuesday after a fruitful engagement with policy makers in the US.
Raila, who left the county on Tuesday last week, held a series of meetings in the US to explain the political stalemate in the country.
On Thursday, Raila addressed hundreds of attendants at the Centre for Strategic and International Studies in Washington where he took a swipe at foreign envoys in Kenya for supporting the election of President Uhuru Kenyatta.
During the meeting, Raila accused diplomats in Nairobi of favouring Uhuru and the Jubilee government during the disputed August 8 presidential election.
He claimed instead of assisting Kenya to resolve the crisis caused by lack of free and fair elections, the envoys were fuelling it.
“The envoys efforts up to now have not succeeded in diffusing the crisis. Let me be blunt again. They sometimes have contributed to the problem,” Raila told his audience at the Centre for Strategic and International Studies.
“I have come to Washington to convey a simple message: We need a fuller engagement from the many arms of governance that your country possesses to assist envoys based in Nairobi,” he said.
Raila also met a delegation from the International Republican Institute, a nonprofit organisation led by President Daniel Twining and Delaware Senator Chris Coons, which advances freedom and democracy.
The Opposition leader also met Senate Congressional Committee officials to brief them on the political situation in the country.