WASHINGTON - Republicans said Sunday that the Internal Revenue Service's heightened scrutiny of conservative political groups was "chilling" and further eroded public trust in government.
Lawmakers said President Obama personally should apologize for targeting tea party organizations, and they challenged the tax agency's blaming of low-level workers.
"I just don't buy that this was a couple of rogue IRS employees," said Sen. Susan Collins, R-Maine. "After all, groups with 'progressive' in their names were not targeted similarly."
If it were just a small number of employees, she said, "then you would think that the high-level IRS supervisors would have rushed to make this public, fired the employees involved, apologized to the American people and informed Congress. None of that happened in a timely way."
The IRS said Friday that it was sorry for what it called the "inappropriate" targeting of the conservative groups during the 2012 election to see if they were violating their tax-exempt status.
The agency blamed low-level employees.
But according to a draft of a watchdog's report obtained Saturday by The Associated Press, senior IRS officials knew agents were targeting tea party groups as early as 2011.
The Treasury Department's inspector general for tax administration is expected to release the results of a nearly yearlong investigation in the coming week.
Lois G. Lerner, head of the IRS division that oversees tax-exempt organizations, has said that the practice was initiated by low-level workers in Cincinnati and was not motivated by political bias.
But on June 29, 2011, Lerner learned at a meeting that groups were being targeted, according to the watchdog's report. At the meeting, she was told that groups with "Tea Party," "Patriot" or "9/12 Project" in their names were being flagged for additional and often burdensome scrutiny, the report says.
The 9/12 Project is a group started by conservative TV personality Glenn Beck.
Rep. Mike Rogers, R-Mich., said "the conclusion that the IRS came to is that they did have agents who were engaged in intimidation of political groups is as dangerous a problem the government can have.
Congressional Republicans already are conducting several investigations and asked for more.