Google will test a feature beginning Thursday that allows the presidential candidates of both parties to produce content that will appear in a window on the results page when a user conducts a relevant search. USA Today reports that text, images and video will appear in a carousel of eight cards that the campaigns control. The cards update as new ones come into the carousel, but the older cards will not disappear from the Internet. If one goes viral, it will show up on a Google search on its own, according to the report.