It seems that Michael Rectenwald now supports Trump. I remember on facebook a couple of years ago he was well-respected by some leftcom/marxist people (I too found his comments often sound). Here are some of his articles:
http://www.thenorthstar.info/?p=11411
http://insurgentnotes.com/2015/07/syriza-and-sanders-just-say-no-to-neo-...
It seems he started an "experiment" to pose as a friend of the rightwing (on twitter, apparently also setting up a newssite "Citizens for Legitimate Government"). I did not really understand his explanation for that (which he gave on some self-described Marxist podcasts).
So what is happening? Why this silence? For example, the usual source on latest scandals on the left, Ross Wolfe's Charnal House blog, has not been active for over two weeks.
There are several "leftists" who more or less openly support Trump. I think Dennis Kucinich falls in that catergory. One leftist-Keynesian blogger, though vehemently anti-marxist, calls for an Altl-left. Perhaps not such a surprise though, since "Keynesian" etc. money cranks are basically populist-nationalists (see also prof. Werner, or revleft forum user DieNeueZeit).
Rectenwald's hobbies these days seem to mostly consist of mocking trans people and blasting "transmania", whining about how he's being persecuted by the PC police over some stunt he pulled in which he pretended he was being forced to go on leave, threatening students at his university, and dubbing pretty much all criticism of him "totalitarianism"--and being such an esteemed scholar, those critics probably don't have the academic cred to be worthy of criticizing him anyway. Apparently his latest classy cause is defending Milo's pedophilia advocacy. Fittingly enough, Citizens for Legitimate Government is a Sandy Hook truther site.
Guy's a total scumbag as well as remarkably unpleasant on a personal level. This piece gets at Rectenwald's bizarre degeneration into an alt rightist crackpot pretty well.