More than 500 people came out to hear former Gov. Jeb Bush give a speech at the National Review Institute's Conservative Summit in Washington on Saturday. It was Bush's first public appearance since leaving office.

Bush spoke for about 25 minutes about what he described as his successes in Florida, including changes in education and healthcare policy and his practice of vetoing "turkeys" or legislators' pet projects. Afterward, he took some questions -- many of which focused on immigration.

He spoke frequently of his brother -- President George W. Bush -- and said he would not criticize him for the Iraq war or anything else. "I love him,'' he said. "I trust him and I believe in him. You should too."

The crowd adored Bush, applauding often and giving him a standing ovation. Afterward, he was mobbed by people who wanted his autograph or to pose for a photograph with him.