The highly publicized government watchdog report back in May that found the IRS tax exempt division singled out conservative groups for scrutiny often cited internal emails to help back up those findings. The Treasury Inspector General for Tax Administration (TIGTA) cited email source material, for instance, in referring to a June 29, 2011 internal briefing paper, which the report said showed how a team of specialists would review any nonprofit applicants with words such as Tea Party or Patriots in a case file. Democrats have since pointed out that progressive groups faced scrutiny from the IRS, too, accusing TIGTA of…