GovTrack.us - GovTrack.us enables users to track the bills and members of the United States Congress.
KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
Vote Smart - Vote Smart, formerly called Project Vote Smart, is a non-profit, non-partisan research organization...
Google Trends - Explore Google trending search topics with Google Trends.
ISideWith - See which American political parties, candidates, and ballot initiatives match your beliefs based on the 2019 issues that are most important to you.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition