What Type of Art Style is the Barack Obama Poster?

I was just wondering what type of art style the Barack Obama poster was. Here is a link to a picture of the poster I am talking about. http://farm3.static.flickr.com/2326/2226156561_2548fa6998.jpg

Public Comments

1. That is a vector with cross hatching for shading. Glad to help!
2. vintage propaganda, comrade
3. It's a powerful graphic statement and a throwback to the 1930's. Most of the WPA posters were either made from woodcuts or were silk screened. Look at this as an example: Isadore Posoff - 'Pennsylvania' Woodcut, color. WPA Federal Art Project, [1936 or 1937] http://lcweb2.loc.gov/cgi-bin/query/I?fsaall,app,brum,detr,swann,look,gottscho,pan,horyd,genthe,var,cai,cd,hh,yan,lomax,ils,prok,brhc,nclc,matpc,iucpub,tgmi,lamb,hec,:1:./temp/~pp_35JX::displayType=1:m856sd=cph:m856sf=3b49067:@@@mdb=fsaall,app,brum,detr,swann,look,gottscho,pan,horyd,genthe,var,cai,cd,hh,yan,lomax,ils,prok,brhc,nclc,matpc,iucpub,tgmi,lamb,hec, http://lcweb2.loc.gov/cgi-bin/query/h?pp/PPALL:@field(NUMBER+@1(cph+3b49067))