cap_get_mip             Download the Comparative Agenda Project's
                        dataset of responses to Gallup's Most Important
                        Problem question, coded by CAP major topic
cap_major_topics        Major topic codes from the Comparative Agendas
                        Project
cap_subtopics           Subtopic codes from the Comparative Agendas
                        Project
get_house_nominate      Get DW-nominate Scores for members of the U.S.
                        House
get_senate_nominate     Get DW-nominate Scores for members of the U.S.
                        Senate
house_116               DW-NOMINATE scores for the 116th House
house_results           US House election results from 1976 to 2018
pres_results            State-by-state US presidential election results
                        from 1976 to 2016
pres_results_by_cd      Presidential election by congressional district
senate_116              DW-NOMINATE scores for the Senators of the
                        116th Congress
trump_approval_polls_538
                        Download FiveThirtyEight's dataset of Donald
                        Trump's job approval polling
us_pres_polls_history   Every presidential general election poll from
                        1980 through 2016
