The John Doe probe began in August of 2012 and is examining possible "illegal campaign coordination between (name redacted), a campaign committee, and certain special interest groups," according to an unsealed filing in the case. Sources told the Milwaukee Journal Sentinel the redacted committee is the Walker campaign, Friends of Scott Walker. Campaign filings show that Walker spent $86,000 on legal fees in the second half of 2013.
A John Doe is similar to a grand jury investigation, but in front of a judge rather than a jury, and is conducted under strict secrecy orders. Wisconsin's 4th Circuit Court of Appeals unsealed some documents last week as it rejected a challenge to the probe filed by three of the unnamed "special interest groups" that had received subpoenas in the investigation and issued a ruling allowing the investigation to move forward.
The special interest groups under investigation include Wisconsin Club for Growth, which is led by a top Walker advisor and friend, R.J. Johnson, and which spent at least $9.1 million on "issue ads" supporting Walker and legislative Republicans during the 2011 and 2012 recall elections. Another group is Citizens for a Strong America, which was entirely funded by Wisconsin Club for Growth in 2011 and 2012 and acted as a conduit for funding other groups that spent on election issue ads; CSA's president is John Connors, who previously worked for David Koch's Americans for Prosperity and is part of the leadership at the Franklin Center for Government and Public Integrity (publishers of Watchdog.org and Wisconsin Reporter). Other groups reportedly receiving subpoenas include AFP, Wisconsin Manufacturers and Commerce, and the Republican Governors Association.
Unlike the first John Doe probe, this newer one seems to have Walker's political operation in its sights. This ought to have Walker and his aides far more concerned than some old emails from his Milwaukee County days.