Guzmán introduced her candidacy to thrive the time period-constrained Paula Sandoval inside the Colorado Senate in July 2009. She was the only applicant to get placed on the key ballot with the seat through the Democratic Party district assembly in April 2010, Even though state agent Joel Judd introduced that he would check out to produce the main ballot through the petition route. When Paula Sandoval was elected to Denver metropolis council in May 2010, Guzmán was the only real prospect to run to fill the vacancy. A vacancy committee of precinct committee officers from the Democratic bash elected her to fill the vacancy by acclamation. She took the oath of Place of work on May possibly 21, 2010.