Through circumstances not ready to be detailed here, I've found that Jason Rodriguez is a DC-area comics creator. Read "MAIL CALL: JASON RODRIGUEZ TALKS POSTCARDS" by Chris Arrant in Newsrama (April 18, 2007) for details on his latest project.
Also, after visiting Jason's website earlier in the week, I went to the link to Rick Geary's website and bought all the postcards he offers. I'd recommend that you do the same. Some are political cartoons and I'll try to do a longer post on them later in the week.