Guzmán announced her candidacy to triumph the expression-restricted Paula Sandoval from the Colorado Senate in July 2009. She was the sole prospect to get put on the first ballot for the seat via the Democratic Social gathering district assembly in April 2010, Even though state consultant Joel Judd declared that he would consider to generate the key ballot by way of the petition route. When Paula Sandoval was elected to Denver town council in Could 2010, Guzmán was the only real prospect to operate to fill the vacancy. A vacancy committee of precinct committee officers with the Democratic bash elected her to fill the vacancy by acclamation. She took the oath of Place of work on May perhaps 21, 2010.