Complex sentence: Howard Shelanski (born 1964), an American lawyer and economist, is an Obama administration official who serves as Administrator of the Office of Information and Regulatory Affairs, part of the Office of Management and Budget.
Split into simpler sentences: Howard Shelanski (born 1964) is an American lawyer and economist. He currently serves in President Obama's administration as Administrator of the Office of Information and Regulatory Affairs (OIRA), part of the Office of Management and Budget.