[explosion] the Breaking News. The devastating scene out of gaza, where palestinian Authorities Say at least 500 people were killed. Blaming an israeli air strike. Israel denying it was them. What their intelligence says about who is responsible. The president heads to a war zone with meetings in israel, his summit canceled, what it all means for peace in the region and the american hostages held in gaza. New Video Tonight of israel taking out four militants attempting to cross the northern border with lebanon. The new fears of a hezbollah attack. We are about 6 miles south of lebanon here. Behind me, you can see israeli troops, vehicles, and weaponry deployed to this area. They say they are on high alert. No person having received a majority, the speaker has not been elected. Norah republican jim jordan loses his first vote for Speaker Of The House. So what happens now . How many rounds are you willing to go . We need to get a speaker as soon as possible. Norah plus our interview with