Breaking: Second IRS Official to Leave

But like Steven Miller, this is not a firing and therefore is not accountability.

An internal IRS memo says Joseph Grant, commissioner of the agency's tax exempt and government entities division, will retire June 3. Grant joins Steven Miller, who was forced to resign as acting IRS commissioner on Wednesday.

As part of his duties, Grant oversaw the IRS division that targeted tea party groups for additional scrutiny when they applied for tax-exempt status.

Grant joined the IRS in 2005.

Congressional investigators should keep his name handy.