The incumbent president will be easier to isolate than reformist leader Mr. Mousavi, say some leading Israeli policymakers.
US envoy Mitchell was in Egypt Thursday, and arrives in Damascus Friday. Syrians hope for a new rapprochement under an Obama administration.
His Cairo speech, combined with other early decisions, may have influenced Lebanon's election Sunday – and could have an impact on Iran's presidential vote Friday.
Prime Minister Benjamin Netanyahu's administration is pushing back against increased US pressure to halt the growth of Jewish communities in the West Bank.
The Western-backed March 14 coalition won an unexpectedly large parliamentary majority – 71 of 128 seats – over the opposition, led by the Iranian-backed militant group.