“Astrotweeting” is the creation of fake Twitter profiles to show support for a political candidate.
Bill White described the practice in an Texas Monthly interview about his 2010 race against Texas Gov. Rick Perry (R):
There were also some silly things that happened that are still hard to believe. One consulting firm of his created artificial people to tweet. The campaign wanted to question my support in the African American community, but they couldn’t recruit an African American person to do it, so on Twitter they used a stock photo of a black person. One of the people who supported my campaign clicked on the image and found out it was a singer from Atlanta.
The Twitter address was registered at the same location as one of Mr. Perry’s political consultants.