He’s so witty. Via Briefing Room: Rep. Barney Frank (D-Mass.) took a trip down the yellow brick road Sunday, equating the GOP presidential field to the characters of “The Wizard of Oz.” Frank offered multiple broadsides to several Republican candidates, but said the 1939 film best captured many of the front-runners. “Mitt Romney is the … Continue reading Bawney Fwank: GOP Candidates Are Characters From “The Wizard of Oz”…