CNN

Police officers in Texas, senior citizens at a nursing home in Pennsylvania and people who had registered to vote at a Marine base in California.

They are among the thousands of voters whose right to cast a ballot has been needlessly challenged ahead of this November’s election by activists — many of whom have been inspired by conspiracy theories — seeking to prevent voter fraud.

“My simple right as a voter is being attacked,” said Daniel Moss, a university administrator from Denton County, Texas, whose registration was challenged by one of the activists even though he has lived in the county and voted there for about two decades. “It’s kind of un-American to do that.”

Election officials across the country have been inundated with dubious complaints about inaccurate voter rolls, which have wasted government resources and sapped taxpayer money spent reviewing lists of registered voters that officials say are already carefully maintained, a CNN investigation has found.