Moderator of the first Obama/McCain and Obama/Romney debates

• "The Elements" singer Tom
• PBS NewsHour host
• "PBS NewsHour" anchor Jim
• Former PBS anchor Jim who moderated 12 presidential debates
• Debate moderator Jim
• "The Masochism Tango" musician Tom
• "We Will All Go Together When We Go" songwriter Tom
• "New Math" songwriter Tom
• Songwriter Tom or newscaster Jim

Wikipedia Word definitions in Wikipedia
Lehrer , potentially recorded in various spellings including Lehr, Lehrer, Lehrian and Lehrmann, is a surname that can be either Germanic or Jewish.