Complex sentence: Falk was advanced as a contender to challenge Wisconsin Governor Scott Walker in an ongoing recall attempt, and announced her candidacy for governor on January 18,2012, but lost in the Democratic gubernatorial primaries to Tom Barrett.
Split into simpler sentences: Falk was advanced as a contender to challenge Wisconsin Governor Scott Walker in an ongoing recall attempt, and announced her candidacy for governor on January 18,2012. However, she lost in the Democratic gubernatorial primaries to Tom Barrett.