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Congressional District 1

Democratic Rep. Ann Kirkpatrick narrowly defeated former Republican state lawmaker Jonathan Paton for Arizona's 1st Congressional District.  

The race was considered a tossup and has featured millions of dollars in ad spending.

Paton counted on backing from conservatives and moderates wary of Kirkpatrick for backing President Barack Obama's polices when she represented the district from 2008 until 2010.

The state's largest district runs from Flagstaff through eastern Arizona counties and then west into parts of Pinal County and includes the Navajo Nation where Kirkpatrick has strong support.

The district has more Democrats than Republicans but nearly a third of registered voters are independents.

Congressional District 2

Democrat Ron Barber was building a slight lead Tuesday night in his quest to win a full term representing Arizona's 2nd District.

Republican Martha McSally was trailing Barber by about 2 percentage points with about 30 percent of the precincts reporting. 

Voters picked Barber to replace former Rep. Gabrielle Giffords in a special election in June. He's her former district director and has touted his lengthy history in the district, his moderate views and his strong backing for veterans and border security.

McSally is a former Air Force pilot making her first run for political office. She wants to cut government regulation, repeal the new health care law and work to balance the federal budget.

The district covers parts of Tucson and Pima County and all of Cochise County.

Congressional District 3 

Democratic congressman Raul Grijalva has won a 6th term in office after turning back a challenge from Republican Gabriela Saucedo Mercer in Tuesday's 3rd Congressional District election.

The race was considered an easy one for Grijalva because the district is majority Democratic. But political novice Saucedo Mercer still made a challenge and spent more than $200,000 in an effort to win the seat.

Grijalva's double-digit lead late Tuesday was wide enough for The Associated Press to declare him the victor.

The sprawling district borders Mexico in southwestern Arizona and includes the western half of Tucson, parts of Yuma and portions of several western suburbs of Phoenix. 

Grijalva has served in Congress since winning office in 2002.

Congressional District 4 

Freshman congressman Paul Gosar was elected to Arizona's 4th Congressional District seat after taking out two primary challengers in August.

Tuesday's election in the heavily Republican district was considered a lock for Gosar, who switched to the district from the 1st District after redistricting carved out many Republican voters. He beat state Sen. Ron Gould and radio station owner Rick Murphy in the GOP primary.

Gosar was challenged by Democrat Johnnie Robinson and two lesser party candidates.

The heavily Republican district runs from western Arizona through Prescott and south of Phoenix.

Congressional District 5

Former Rep. Matt Salmon coasted to a victory in Tuesday's 5th Congressional District election. 

The Republican faced Democrat Spencer Morgan to represent Mesa and other east Phoenix suburban areas. Republicans outnumber Democrats almost 2-to-1 in the district.

Morgan is from Gilbert and has reported raising no money in the race.

Salmon won the GOP primary election in August by defeating former Arizona House Speaker Kirk Adams. He represented an earlier version of the district for three terms in the 1990s. 

Salmon ended his tenure in Congress to follow a pledge that he would serve only three terms and went on to an unsuccessful run for governor in 2002. He has worked as a lobbyist in recent years.

Congressional District 6 

U.S. Rep. David Schweikert won a heavily Republican district that includes Scottsdale, Paradise Valley and parts of Phoenix.

Schweikert defeated fellow Republican Ben Quayle in August in a bruising party primary election that was triggered by redistricting.

The two were elected to adjacent districts in 2010. But Quayle -- the son of former Vice President Dan Quayle -- decided to run in the nearby 6th Congressional District after redistricting made his district more competitive.

Schweikert beat third-party candidates and Democrat Matt Jette. Jette recently said he's re-registered as an independent. Elections officials, however, say the ballot will still carry the D-tag for Jette.

Congressional District 7 

Longtime Democratic Rep. Ed Pastor was reelected in his heavily Democratic south Phoenix district on Tuesday.

Pastor had no Republican challenger in the 7th District after the GOP's write-in candidate failed to get enough votes to appear on the ballot. He faced Libertarian Joe Cobb, who has little name recognition or campaign cash.

In August, Pastor easily bested challenger Rebecca Witt in the Democratic party primary.

The 69-year-old Pastor has been in Congress since winning a special election in 1991.

Congressional District 8 

Republican Rep. Trent Franks defeated two candidates in a heavily GOP district that covers the northern and western Phoenix suburbs. 

The 55-year-old Franks sought a sixth term and bested Democrat Gene Scharer and Stephen Dolgos, who ran on the Americans Elect ticket.

Franks' old district covered the entire northwestern corner of the state. But with redistricting, the district only covers parts of metropolitan Phoenix. The new 8th Congressional District remains solidly Republican.

Franks won the GOP nomination in August by a large margin, easily beating a Glendale businessman and a write-in candidate.

Congressional District 9

The bruising battle between former state Sen. Kyrsten Sinema and ex-Paradise Valley Mayor Vernon Parker for Arizona's 9th Congressional District showed no signs it would end easily Tuesday night.

Parker and Sinema were locked in a near dead heat as ballots were counted. Sinema was ahead by just 1 percentage point with 60 percent of the precincts reporting. 

The race to represent much of Tempe and parts of Phoenix, Scottsdale, Paradise Valley, Mesa and Chandler featured two months of vicious campaign ads.

Parker has weathered Democratic criticism that he's a tea party radical who will hurt children by cutting the federal education department. Sinema has been called a radical too liberal for the newly created district who doesn't understand stay-at-home moms.

Republicans have a slight registration advantage but both parties' totals are exceeded by independents.