Livni asked to form new Israeli government
Livni will have up to 42 days to put together a coalition. Scandal-hit Ehud Olmert, who resigned as prime minister on Sunday, will remain in office until the next government is in place, either through political negotiations or an election.
Earlier, Peres sounded out parliamentary faction leaders on their preferences for prime minister or whether they wanted an early election ahead of a national ballot due in 2010.