
As our Jack Crowe has noted, Cohen's guilty plea is in connection with Special Counsel Robert Mueller's investigation and pertains to testimony Cohen gave to the Senate Intelligence Committee. Cohen pled guilty to a one-count criminal information.
In a nutshell, Cohen gave testimony to the committee that minimized the extent and duration of efforts made by the Trump organization on the Moscow project. In order to downplay Donald Trump's connections to Russia, Cohen told the committee that the project had ended in January 2016 (i.e., before the Iowa caucuses), and that Trump's personal involvement had been scant - limited to three conversations with Cohen.
In reality, Cohen now says efforts on the project continued well into 2016. Moreover, both Donald Trump and members of his family were extensively briefed on it. The efforts involved communications with Russian-government officials, as well as discussions of possible trips to Russia by Cohen and Trump, and possible meetings with Russian president Vladimir Putin and Prime Minister Dimitry Medvedev.












Comment: As Byron York at the Washington Examiner points out, there's something else interesting about this latest development. No mention is made of a central claim in the Russiagate narrative: Cohen's alleged trip to Prague to arrange secret payments to Russian hackers: