Former foreign minister Abdullah Abdullah, who lost the last election to President Hamid Karzai, wants a comprehensive audit of last month's runoff election ballots.
Preliminary results for Afghanistan's presidential election appear to show Ashraf Ghani won in a landslide. But his defeated opponent is unlikely to accept the result.
The suicide bombing in Kabul left at least seven people dead and raises concern over the safety of the presidential run-off election on June 14.
As foreign troops draw down and a new president takes office, the sort of dealmaking among Afghans that could promote stability might actually grow easier. A triumphant Taliban march on Kabul – or even their old stronghold of Kandahar – is unlikely.