Bradley Smith sets out for Wall Street Journal readers a timeline of events that point toward the magnitude of the scandal involving the IRS and its targeting of conservative groups for extra scrutiny.

Now consider the following events, all of which were either widely reported, publicly released by officeholders or revealed later in testimony to Congress. These are the dots the media refuse to connect:

• Jan. 27, 2010: President Obama criticizes Citizens United in his State of the Union address and asks Congress to “correct” the decision.

• Feb. 11, 2010: Sen. Chuck Schumer (D., N.Y.) says he will introduce legislation known as the Disclose Act to place new restrictions on some political activity by corporations and force more public disclosure of contributions to 501(c)(4) organizations. Mr. Schumer says the bill is intended to “embarrass companies” out of exercising the rights recognized in Citizens United. “The deterrent effect should not be underestimated,” he said.

• Soon after, in March 2010, Mr. Obama publicly criticizes conservative 501(c)(4) organizations engaging in politics. In his Aug. 21 radio address, he warns Americans about “shadowy groups with harmless sounding names” and a “corporate takeover of our democracy.”

• Sept. 28, 2010: Mr. Obama publicly accuses conservative 501(c)(4) organizations of “posing as not-for-profit, social welfare and trade groups.” Max Baucus, then chairman of the Senate Finance Committee, asks the IRS to investigate 501(c)(4)s, specifically citing Americans for Job Security, an advocacy group that says its role is to “put forth a pro-growth, pro-jobs message to the American people.”

• Oct. 11, 2010: Sen. Dick Durbin (D., Ill.) asks the IRS to investigate the conservative 501(c)(4) Crossroads GPS and “other organizations.”

• April 2011: White House officials confirm that Mr. Obama is considering an executive order that would require all government contractors to disclose their donations to politically active organizations as part of their bids for government work. The proposal is later dropped amid opposition across the political spectrum.

• Feb. 16, 2012: Seven Democratic senators— Michael Bennet (Colo.), Al Franken (Minn.), Jeff Merkley (Ore.), Mr. Schumer, Jeanne Shaheen (N.H.), Tom Udall (N.M.) and Sheldon Whitehouse (R.I.)—write to the IRS asking for an investigation of conservative 501(c)(4) organizations.

• March 12, 2012: The same seven Democrats write another letter asking for further investigation of conservative 501(c)(4)s, claiming abuse of their tax status.

• July 27, 2012: Sen. Carl Levin (D., Mich.) writes one of several letters to then-IRS Commissioner Douglas Shulman seeking a probe of nine conservative groups, plus two liberal and one centrist organization. In 2013 testimony to the HouseOversight and Government Reform Committee, former IRS Acting Commissioner Steven Miller describes Sen. Levin as complaining “bitterly” to the IRS and demanding investigations.

• Aug. 31, 2012: In another letter to the IRS, Sen. Levin calls its failure to investigate and prosecute targeted organizations “unacceptable.” …

… • Feb. 13, 2014: The Hill newspaper reports that “Senate Democrats facing tough elections this year want the Internal Revenue Service to play a more aggressive role in regulating outside groups expected to spend millions of dollars on their races.”

In 1170, King Henry II is said to have cried out, on hearing of the latest actions of the Archbishop of Canterbury, “Will no one rid me of this turbulent priest?” Four knights then murdered the archbishop. Many in the U.S. media still willfully refuse to see anything connecting the murder of the archbishop to any actions or abuse of power by the king.