President Obama makes first visit to Israel amid growing concerns of chemical weapons use in Syria – Sara Sidner reports

President Obama arrives in Tel Aviv for the start of a historic Middle East visit today. He is scheduled to meet separately with Israeli Prime Minister Benjamin Netanyahu and Palestinian President Mahmoud Abbas during the trip. The president is expected discuss the United States’ commitment to preventing a nuclear-armed Iran with Netanyahu and restarting negotiations between Israel and Palestine.

His plane lands in less than 90 minutes but his mission is taking on a new urgency at this hour because there is mounting evidence the Syrian government has used chemical weapons on its own people near the city of Aleppo.

Sara Sidner is live in Jerusalem for "Early Start" this morning with the latest on how developments in Syria might affect the president’s agenda on this trip.