Information on candidates in national elections is available on those candidates' official websites. In addition, third part sources, such as OnTheIssues.org, compares and contrasts candidates' positions on major issues, while groups such as the Susan B. Anthony List provide endorsements of candidates based on where they stand on particular issues.
Official campaign websites are usually reliable sources for information on a candidate's stance on different issues. For example, as of 2015 the website of 2016 U.S. Republican Presidential contender Ted Cruz provides brief summaries of his views on topics such as the Constitution, jobs, marriage, abortion and national defense. The website of 2016 Democratic contender Bernie Sanders presents his position on climate change, job creation and wealth inequality.
OnTheIssues.org enables users to get a quick overview as well as a detailed look of candidates' positions on issues ranging from abortion, corporations, civil rights, foreign policy and education. Under many issue headings are links to quotes from the candidate in question on the topic, as well as a link to a page comparing other candidates' positions on the same issue.
The Susan B. Anthony List endorses candidates based on their level of support for pro-life causes. The National Rifle Association goes further to provide ratings to candidates based on their support for gun rights.