Preprint is "OS_GR18preprint.pdf" All .txt files are tab-delimited data files. obfuscation.do is a Stata script that reads the .txt files and runs the analyses except for those in tables 2 and 3. political_mediators_output.pdf describes the SPSS specification that generates tables 2 and 3 based on political_mediators.sav, which is similar to political_mediators.txt.