Proponents of the theory of the existence of chemtrails characterize these phenomena as streams that persist for hours and that, with their criss-cross, grid-like or parallel stripe patterns, eventually blend to form large clouds.

Proponents of the Governor's recall characterized the increase as a tax hike and used it as an issue in the recall campaign.

Proponents of the amendments characterized them as a measure to protect the interests of the city's middle-class homeowners.

The site's founder, Jimmy Wales, told the BBC: "Proponents of Sopa have characterised the opposition as being people who want to enable piracy or defend piracy".