Israelis and Palestinians both face heated political contests that are adding to the volatility between Israel and Hamas after a six-month cease-fire broke down last week.
A six-month truce with Hamas ends Friday. Violence between Israel and Gaza militants has flared in recent days.
John McCain leads Barack Obama by 12 percent in one Israeli poll, a reflection of security concerns.
On Thursday in Egypt, Israeli President Shimon Peres backed the 'spirit' of a Saudi proposal that offers Arab recognition of Israel.
The latest stops in his Mideast tour included the rocket-besieged Israeli town of Sderot and the West Bank town of Ramallah.
Can Gaza's ruling militants keep other armed groups from spoiling a six-month cease-fire with Israel intended to improve life in the impoverished coastal strip?
Palestinian militants from Islamic Jihad fired rockets on Israel Tuesday in retaliation for an Israeli strike on its members in the West Bank.