Are you running on a communist platform, or representing the ironics?

I'm simply aiming to imitate their unique style of propaganda, as a humourous way of publicising my campaign.

There are books you can Google on that and get plenty of examples. The word "Soviet" and "Propaganda" are good key words.

I have a book titled "Soviet Posters" by Maria Lafont that would be a start. If you look at that book on Amazon, it will show you a bunch in the same vein.

Most importantly, though, the font needs to be easily recognisable as a propaganda-style type!

Take a look at my Downturn family. Downturn has a constructed style similar to constructivist-era Soviet lettering but is based on American industrial letters so you won’t run into the legibility problems and general silliness of Latin fonts that mimic Cyrillic.

"constructivist-era Soviet lettering"

The propaganda era was in the late 1940s and 1950's--well past the Constructivist era (30 years prior). Stalin had either sent those guys to Siberia or they had wisely escaped the country by then.

The old standard 1990s Windows Cyrillic condensed bold sans probably would work fine.

There are lots at MyFonts.
Simply enter "propaganda" in the search field.
I wouldn't shy away from the backwards R, if your audience is lay people rather than graphic designers.
They will still be able to read it -- there is more danger that they won't get the joke.

There are lots at MyFonts.

In particular, Ryoichi Tsunekawa's Prop-A-Ganda fonts.

Yes! Those Propaganda fonts are perfect!

Here are a few images going through a few Soviet decades:

1923 before constructivist ejection

1921 Typical

1947 early post war

1948 worker propaganda

1955 Typical Cold War

1963 Castro Krushchev era

BTW, I grew up during the "Duck and Cover" or "Better Red than Dead" era and saw some of the propaganda images of the 50s and 60s when the CIA released them to the media under either the "Know thine enemy" or else the "Keep defense spending fueled" reasoning depending on your bias. :-)
I even made a few spoof posters myself several years back.

You could also try Mostra Nuova by Mark Simonson.

Mostra Nuova is very beautiful but a bit too Italian for this.

Interestingly, both the Constructivist and Socialist Realism Soviet styles, although poles apart, employ bold condensed sans all-cap headlines.

Although the Constructivist lettering is hand-lettered and more blocky.

Mostra is propaganda of the Fascist persuasion. ;-)

Maybe something from Fenotype might help, say, Ural or Lakmus...

There's an app for that!

http://itunes.apple.com/us/app/istalin-create-your-communist/id327879128...

Some inspirations

Not quite Soviet, but free: Parole.

Then again, these prop-a-ganda ones are really awesome ...