Somebody needs to get their hands on an organization chart for those immediately under her.
Bring in everyone of them, under oath.
Somebody will tell the truth.
The Republicans will never do it. They are no more than willing enablers because it fit their needs to bring down the Tea Party.
You can get a good start at building an Org Chart by reading this article from Fox19:
Reality Check Exclusive: Cincinnati agent giving orders in IRS scandal?
Here is the first paragraph of the article just to give you a flavor of what you'll find:
"The six Cincinnati workers we have identified, who sent scrutinizing letters to conservative groups with words including "patriot, liberty, tea party or 9-12" in their names are Mitchel Steele, Carly Young, Joseph Herr, Stephen Seok, Liz Hofacre and a woman identified only as Ms. Richards."
If you read the whole article you will find that these people ultimately report to a Cindy Thomas. Reading on you will read that:
... consider this chain of command since the story broke.
Former Acting IRS Commissioner Steven Miller retires
Joseph Grant, Commissioner of Tax Exempt and Government Entities... retires.
Lois Lerner, Head of Exempt Organization says she will invoke her 5th amendment right to not incriminate herself when called before Congress on Wednesday.
Holly Paz, Director of Exempt Organizations, subpoenaed to Washington to be interviewed by members of Congress.
All of this IRS leadership, in Washington D.C.
Then one level down is Cindy Thomas, the highest ranking employee in Cincinnati in this Tax Exempt and Government Entities Department that no one in Congress is talking to... yet.