Much as the Democrats are trying to lie their way out of this, the evidence is clear:

The IRS’ auditor told Congress this week that it stands by its determination that conservative groups were uniquely singled out for special scrutiny by the tax agency, rebutting Democrats’ contention that liberal groups also were targeted.

http://www.washingtontimes.com/news/2013/jun/27/irs-auditor-reaffirms-conservatives-not-liberals-w/