Liberal groups were getting applications approved quickly while Tea Party applications were in limbo

USA Today:

In February 2010, the Champaign Tea Party in Illinois received approval of its tax-exempt status from the IRS in 90 days, no questions asked.

That was the month before the Internal Revenue Service started singling out Tea Party groups for special treatment. There wouldn't be another Tea Party application approved for 27 months.

In that time, the IRS approved perhaps dozens of applications from similar liberal and progressive groups, a USA TODAY review of IRS data shows.

As applications from conservative groups sat in limbo, groups with liberal-sounding names had their applications approved in as little as nine months. With names including words like "Progress" or "Progressive," the liberal groups applied for the same tax status and were engaged in the same kinds of activities as the conservative groups. They included:

• Bus for Progress, a New Jersey non-profit that uses a red, white and blue bus to "drive the progressive change." According to its website, its mission includes "support (for) progressive politicians with the courage to serve the people's interests and make tough choices." It got an IRS approval as a social welfare group in April 2011.

• Missourians Organizing for Reform and Empowerment says it fights against corporate welfare and for increasing the minimum wage. "It would be fair to say we're on the progressive end of the spectrum," said executive director Jeff Ordower. He said the group got tax-exempt status in September 2011 in just nine months after "a pretty simple, straightforward process."

• Progress Florida, granted tax-exempt status in January 2011, is lobbying the Florida Legislature to expand Medicaid under a provision of the Affordable Care Act, one of President Obama's signature accomplishments. The group did not return phone calls. "We're busy fighting to build a more progressive Florida and cannot take your call right now," the group's voice mail said.

Like the Tea Party groups, the liberal groups sought recognition as social welfare groups under Section 501(c)(4) of the tax code, based on activities like "citizen participation" or "voter education and registration."
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Congressional critics say the IRS's actions suggest a political motives: "This administration seems to have a culture of politics above all else," said Rep. Bill Flores, R-Texas. "A lot of the actions they take have a political side first, and put government second."

Flores complained to the IRS last year after the Waco Tea Party's tax-exempt application was mired in red tape. The IRS asked the group for information that was "overreaching and impossible to comply with," Flores said: Transcripts of radio interviews, copies of social media posts and details on "close relationships" with political candidates.

When Flores complained last year -- asking pointed questions about the IRS treatment of Tea Party groups -- the IRS response didn't acknowledge that it had treated conservative groups differently. "They did more than sidestep the issue," he said. "They flipped me the finger."
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This is a scandal that gets uglier with each revelation.  I find the suggestion that low level people did this on their own as not credible.   The Waco group was not the only Texas Tea Party operation to be abused in this process.  This is a denial by request strategy that bureaucrats use when they know they can't deny the application outright without provoking litigation.

It looks like it was part of a coordinated voter suppression effort aimed at conservatives.