I have written this piece for Slate. It begins:

For the first time since the Trump presidency began, President Donald Trump is in some real legal jeopardy, providing potential grounds for his eventual impeachment, if not indictment.

Most people watching the investigations involving Trump and his orbit have been focused on whether Special Counsel Robert Mueller is going to bring charges related possible illegal coordination between the 2016 Trump presidential campaign and Russian government entities. But Tuesday brought news of a different kind of campaign collusion: between Trump and his personal lawyer, Michael Cohen. Cohen’s guilty plea to campaign finance violations related to hush money payments to porn actress Stormy Daniels and former Playboy Playmate Karen McDougal bring the president front and center in a conspiracy to violate federal campaign finance laws.