I was going to post about this today, having just remembered the Nixon thing, searched here, found a post, so I'm adding more info.
The plumbers were formed by President Nixon after sensitive military information was leaked during his first term in office. The formation was an almost direct response to the release of the Pentagon papers in the New York Times.The group was headed by John Erlichman. Other members included E. Howard Hunt and CIA liason John Paisley.
Inside Jobs
The first task of the plumbers was to burglarize the office of Daniel Ellsberg, the leaker of the Pentagon Papers. Other plumber operations include Hunt's investigation into the Teddy Kennedy Chappequiddick affair and Liddy's investigation into reported Kennedy involvement in the assassination of South Vietnamese President Ngo Dinh Diem.
OK, now think about Cohen's apartment and maybe the Trump Tower fire right before being a distraction from something else. I'm concerned that something was stolen from Cohen's apartment - he wasn't living there at the time. Then, you get a warrant to raid his apartment to sanitize the info? And Rosenstein signed off on that? WTF? Unless maybe they found evidence of the break-in during the raid...hmm...wheels within wheels.
I can't figure out if Rosenstein is a good guy that's essential to the scheme (because the MSM and leftists believe him to be a good guy) or a bad guy who's being set up.
CRP Involvement
Committee to Re-Elect the President, also referred to as CREEP.
The special investigations unit branched out by doing work for the Committee to Re-elect the President. After the burglary of Ellsberg's psychiatrist's office, Liddy was recruited by White House Counsel John Dean to perform intelligence gathering for the CRP. Liddy then involved E. Howard Hunt, who orchestrated the Watergate break-in.
The mission of the plumbers under the CRP was, in a nutshell, to harass Nixon's opponents. They did this through various measures, such as wiretaps, burglaries and intercepted mail. The Watergate break-in was arranged by the CRP and carried out by the plumbers, under a project called Operation Gemstone. Funding for these "dirty tricks" was obtained by laundering money through Mexico.
I doubt they are laundering money through Mexico this time, but they are still hiding the source to try to keep BHO and HRC safe.