President Donald Trump woke up on Thursday feeling persecuted.
"The Dems and their committees are going 'nuts,' " he tweeted, launching investigation after investigation into Trump's campaign, presidency and private business. "The Republicans never did this to President Obama," he added, "there would be no time left to run government."
While it's true that Republicans didn't launch investigations into President Barack Obama's nonexistent private business or his campaign, it's far from true that they never launched a full-scale attack on Obama's administration. Over the course of his two terms in office, there were at least four issues that prompted significant congressional investigations into Obama's administration, if not Obama himself.
In fact, there were far more than four issues that prompted congressional scrutiny. In the interests of making the list below manageable, we excluded issues in which Republican-controlled committees in Congress held only a hearing or two, such as the investigation into the failure of Healthcare.Gov to work as advertised at launch. We also excluded lengthier probes that were more tangential to Obama, like the investigations into the General Services Administration's spending habits early in his presidency. Our criteria, generally, were lengthy investigations that resulted in reports and were aimed, at least in part, at questioning Obama himself directly.
(Even within those boundaries, it's very possible that we missed something, given Congress' apparent disinterest in preserving old material online once control of committees changes hands.)
Here are the four main investigatory areas Congress explored, most of them at the hands of Republicans.
For the first two years of Obama's presidency, there were no significant investigations into his administration that focused on him. Once Republicans took control of the House in early January 2011, though, that changed.
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Fast and Furious
The first issue that prompted such an investigation was a failed operation conducted by the Bureau of Alcohol, Tobacco, Firearms and Explosives, in which the Bureau allowed illegal gun sales near the border with Mexico in hopes of tracking where the weapons went. The operation was largely unsuccessful, and one weapon that was sold was found near the scene where a Border Patrol agent was killed.
Fast and Furious was presented as an example of the Obama administration acting to cover up its mistakes.
(All timespans for the investigations listed below refer to the first public hearing or public announcement of the formation of an investigation through the final report issued by a committee.)
House Oversight Committee, February 2011 to July 2014
Then chaired by Rep. Darrell Issa, R-Calif., the Oversight Committee launched an investigation into the operation aimed at determining what had happened and what administration officials knew about it. In July 2011, the committee released the first of a three-part report assessing what it had learned.
House Oversight, October 2011 to June 2017
In October 2011, as part of its investigation, the committee subpoenaed materials from the Justice Department, then led by Attorney General Eric Holder. While it received some of the material it sought, Holder's refusal to supply additional documents resulted in a protracted fight and his eventual censure by the House. The third of the three parts of the Oversight probe focused on this fight and was only released after Obama (and Holder) had left the government.
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One of Obama's focal points as president was to bolster jobs associated with renewable energy. That included making loans through an established Energy Department program that acted as investments in clean energy companies, including a California-based solar-panel company called Solyndra. It collapsed, defaulting on its loan to the government - although the loan program overall ended up earning a profit for the government.
The investment was presented as an example of "crony capitalism," an investment made at Obama's behest to favor a particular company.
House Energy and Commerce Committee, February 2011 to August 2012
The final report on the investment found that the administration didn't allow the company to fail earlier than it did, choosing instead to restructure the loan and fostering heavier losses.
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By far the biggest target of congressional investigators were the twin attacks on U.S. facilities in Benghazi, Libya, on Sept. 11, 2012 - shortly before the 2012 election. How the attacks led to the deaths of four Americans, including Ambassador Christopher Stevens, was a subject of intense scrutiny - aimed first at Obama's administration and, as the 2016 election neared, at Obama's secretary of state, Hillary Clinton.
Five House committees launched investigations shortly after the attacks took place (and mostly before the 2012 election).
House Armed Services Committee, September 2012 to February 2014
House Foreign Affairs Committee, November 2012 to February 2014
House Intelligence Committee, September 2012 to November 2014
House Judiciary Committee, September 2012 to April 2013
House Oversight, October 2012 to September 2013
The five committees released a joint preliminary report in April 2013. Most of the committees continued their work beyond that point, the result of which included broadly rebutting many of the conspiracy theories flying around on conservative media.
Two Senate committees, then controlled by the Democratic majority, also launched probes.
Senate Intelligence Committee, October 2012 to January 2014
Senate Homeland Security Committee, October 2012 to December 2012
But the most notable and influential investigation came with the formation of a select committee of members of the House to investigate the attacks.
Select Committee on Benghazi, May 2014 to December 2016
The most important finding from the select committee didn't relate directly to the Benghazi attacks at all. It was this committee that uncovered Clinton's private email server, the existence of which prompted an eventual FBI investigation and which played a key role in Clinton's losing the 2016 presidential election. The committee concluded its work shortly after the campaign ended.
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There were hints in Obama's first term that the IRS was applying special scrutiny to certain political groups that were hoping to form 501(c)(4) nonprofit organizations. The House Ways and Means committee began seeking information on the subject in June 2011, but it never released a formal report summarizing its findings.
Formal investigations didn't begin until after IRS executive Lois Lerner admitted publicly in May 2013 that the agency had singled out certain groups - including some that identified as tea party groups - for additional questioning.
House Oversight, May 2013 to December 2014
Issa's Oversight committee was again actively involved in questioning IRS decisions and behavior. The committee ultimately determined that liberal and conservative groups had been subject to additional scrutiny. Despite theorizing in conservative media, no link was found to the White House ordering that conservatives be put under the microscope.
Senate Finance Committee, May 2013 to August 2015
The Senate report dealt largely with IRS mismanagement of the process.
Overall, according to our tally, the above inquiries of the Obama administration totaled more than 8,400 days of investigation, from launch to final report. That's 23 years of probes covering an eight-year administration.