In the final days until Election Day, it's now a ground game for support. Volunteers are working hard to capture those voters still undecided.
The candidates have made their arguments. Now it's time to get voters to cast their ballots. That's the focus on the last stretch.
Every call counts. People who are passionate about politics are trying to provide the margin of victory in the closing days of the campaign.
The first office we visited is the Democratic Party operation near 32nd Street and Shea. They spent a lot of time over the summer trying to persuade people to vote democratic. Mow it is strictly "get out the vote" time.
"We are working very hard to make sure people who support our candidates know this is the last day to return early ballots," says Jane Mcnamara, Democratic volunteer.
It takes a special touch to get through to voters.
"I just talk to someone the way I would want them to talk to me, just be really natural," says volunteer Meilani Lombardi.
Meanwhile, at Arizona Republican headquarters, volunteers are also trying to close the deal.
"We are calling lots of different kinds of voters, mostly registered republicans who are early voting to remind them to send their ballots in," says Tim Sifert of Arizona Republican Party.
"This time of day a lot of people aren't home, a lot of people are at work. Those I did get were very receptive and said they would vote for our candidates," says Elaine Gangluff.
Voter registration is up in Arizona. Since the primary, 24,000 people have registered to vote. Of those new registrations, nearly 18,000 were democrats, about 8,000 were republican, and the number of independents dropped by about 2,000.
There are 3.1 million registered voters in Arizona. Republicans have a slight edge, followed by independents and democrats. This year was the first time the number of registered independents fell.
The senate race in Arizona is getting national attention as we head into the final days of the election season.
Actor Robert Redford penned a letter asking people to donate to the campaign of former Surgeon General Richard Carmona.
Redford, an environmental activist, wrote that Flake's support of uranium mining in the Grand Canyon could pollute drinking water.
Meanwhile, presidential candidate Mitt Romney threw his support behind Jeff Flake.
"That's why Arizona needs Jeff Flake in the U.S. Senate. He'll fight runaway spending, reduce taxes, get our fiscal house in order," said Romney in a recent ad.