Acting commissioner of the Internal Revenue Service, Steven T. Miller has submitted his resignation to President Obama on Wednesday following controversies relating to targeting conservative groups seeking tax-exempt status.

The move might help address the large political controversy following IRS's disclosure that it had targeted conservative groups that were seeking exempt status for taxes. President Obama has described the events at IRS as inexcusable. The government also released a letter from Treasury Secretary Jack Lew that demanded the resignation of Miller. The move is aimed at restore public trust and confidence in the tax authorities.

"Americans are right to be angry about it, and I'm angry about it. It will not tolerate this kind of behavior in any agency, but especially in the IRS, given the power that it has and the reach that it has," he said.

Obama and his officials have faced criticized in recent days by opponents for being slow in responding to the controversy involving the IRS and related events. Meanwhile, Republicans said Obama's efforts at the IRS did not address their concerns in the matter. Senate Minority Leader Mitch McConnell said that the president is taking action after two years since the problem began.