Katie Gruenwald is a student and a Democrat, but in the end, she voted for Romney.
"I really felt his comment about adding value to America really was important," Gruenwald said.
Bill Bruner worked on Republican campaigns, but he pulled the lever for President Obama.
"The bottom line for me was I couldn't define Governor Romney. He kept changing his mind on the issues," Bruner said.
Of the 12 randomly selected undecided Colorado voters, nine admitted to voting for President Obama while two cast their vote for Romney. One person did not feel comfortable telling 9NEWS who she voted for.
Six of those 12 were unaffiliated voters, four are registered Republicans and two are registered Democrats.
To see all the interviews, watch the video above.
(KUSA-TV © 2012 Multimedia Holdings Corporation)