Justice Department criminal investigation now touches nearly all efforts to overturn 2020 election for Trump

(CNN) Justice Department criminal prosecutors are now examining nearly every aspect of former President Donald Trump's efforts to overturn the 2020 election -- including the fraudulent electors plot, efforts to push baseless election fraud claims and how money flowed to support these various efforts -- according to sources and copies of new subpoenas obtained by CNN.
The sweeping effort has many in Trump world concerned about the potential legal significance of being caught up in a federal investigation.
The flurry of investigative activity has involved seizure warrants, including one served to Trump counsel Boris Epshteyn for his phone, according to multiple people familiar with the matter.
The widening pool of recipients of subpoenas also includes prominent Trump deputies, such as his former White House adviser Dan Scavino, who continued to work for Trump after he left office.
The subpoena language and activity bring together the seemingly far-flung parts of the DOJ investigation.
However, the latest developments in the 2020 election investigation come as the documents probe has already put Trump allies on high alert for potential legal exposure.
The Trump-world figures now swept up in the investigation claim the department is on a fishing expedition that is impeding on privileged communications.
Others, already entangled in other Trump investigations, know the drill -- keep quiet until the dust settles.
In June, the Justice Department seized the phone of Eastman, the Trump attorney who spearheaded the far-fetched legal theory that Pence could hold up Congress' certification of Biden's win.
Federal investigators also that month searched the home of an ex-DOJ official, Jeffrey Clark, who was at the center of Trump efforts to pressure the department to support his plots.
When the agents seized and imaged his phone, they also served him a subpoena for documents, according to some of CNN's sources.
The wider net the department is now casting is also evident in the types of Trump-world figures who received the latest round of subpoenas.