Chris Johnson was just trying to do her patriotic duty. But a vote in last year's Salt Lake City Council race has landed her state legislative campaign in limbo. Johnson, a Democrat, is running for the open seat of Salt Lake City Democratic Rep. Ross Romero, who is vying for a spot in the state Senate. She is one of five Democrats and two Republicans battling for the House District 25 seat. Josh Ewing, Salt Lake City Mayor Rocky Anderson's former spokesman, also is running as a Democrat to represent parts of Sugar House, Holladay and Summit County. A few months before the 2005 election, Johnson moved into the district. She mistakenly returned to her old precinct to vote for City Councilwoman Jill Remington Love, who faced no opponent. Now that ballot is the basis of a challenge to her residency filed by Adam Bass, Democratic legislative district chair and former Riverton City Councilman. "There were enough questions raised that an investigation was warranted," Bass said. Utah law requires candidates for state office to have lived in the state for three years and in their legislative district for six months, which Johnson has. But voting in another area can be used as proof of residence elsewhere. Olympic Gold Medalist Jim Shea withdrew from his Utah Senate race last week after a similar challenge was raised against his residency. For now, Johnson is campaigning while waiting for the Lieutenant Governor's Office to review her residency. "Yes, I made a mistake by not checking before I went to vote," Johnson said. "But I moved six blocks. That's being used against me." -Rebecca Walsh