On February 28, the Democratic Party sued President Trump, and the Federal Election Commission, to obtain a judgment that the Commission cannot be compelled to follow Trump’s February 18 Executive Order. His Order says “the President and the Attorney General’s opinions on questions of law are controlling on all employees” of the federal government. But the FEC was set up to be independent and to make its own independent judgments about election law.
Here is the Complaint in Democratic National Committee v Trump and FEC, U.S. District Court, D.C., 1:25cv-587.
It would have been appropriate for the Democratic Party to have reached out to any political parties other than the Republican Party, and invited them to join the lawsuit, but apparently that didn’t occur to the Democratic Party’s attorneys.