TAPPER: Welcome back to THE LEAD. I'm Jake Tapper in Boston. Some other big stories we're watching while here in Boston today. One day after a House Republican report blamed Hillary Clinton for the attacks at Benghazi, they are demanding that President Obama release the cable with her signature that they say proves it. House Republicans say Secretary of State Clinton personally signed off on cuts in security at the diplomatic mission in Libya before the attack last year that claimed the lives of U.S. Ambassador Chris Stevens and three other Americans. Top House Democrats are saying they were not consulted by Republican chairman and they're blasting the report as partisan. Last year more than 165,000 people were there, a record crowd. This year Churchill Downs is beefing up security for the Kentucky Derby following the Boston marathon bomb blast. Officials say with a crowd so large they'll need the fans' help -- coolers, cans, fireworks, and camcorders now on the list of banned items. All changes after the terror attack in Boston. We've heard weeks of horrifying testimony in the murder trial of a Philadelphia abortion doctor, but today when the defense got its turn it rested without calling a single witness. Dr. Kermit Gosnell is accused of performing abortions on women well beyond the 24-week cut-off for legal abortions in Pennsylvania. In some cases prosecutors say Gosnell killed babies who were born alive. Gosnell has pleaded not guilty. Closing arguments are expected to begin on Monday. As Boston recovers from an appalling act of terrorism there will be some chilling reminders of the day our nation was thrust into the war on terrorism when the George W. Bush Presidential Library opens to the public for the first time tomorrow in Dallas. John King sits down with President Bush for a rare interview that you can see exclusively on an "AC 360" special tonight at 10:00 p.m. Eastern. Up next, a poisoned letter addressed to President Obama. Now the man that police first took into custody, an Elvis impersonator, says he was framed. We'll tell you who he thinks set him up.
GOP Releases Benghazi Report; More Items Banned For Kentucky Derby; Defense Rests In Abortion Doctor Trial