Voters in five of the six congressional districts that don't include parts of Southern Arizona chose their representatives along the expected 4-1 party split in favor of Republicans. The other non-Southern Arizona seat was a tossup late Tuesday.

The easy winners were:

4th District: Freshman Congressman Paul Gosar easily won election over Democrat Johnnie Robinson and two lesser-party candidates in northwestern Arizona. Gosar switched districts after redistricting made his old eastern Arizona one more competitive. The district runs from western Arizona through Prescott and south of Phoenix.

5th District: Former Rep. Matt Salmon coasted to a victory over Democrat Spencer Morgan and will return to Capitol Hill after a dozen-year absence. Salmon represented an earlier version of the district for three terms in the 1990s.

6th District: U.S. Rep. David Schweikert won an easy re-election victory in a heavily Republican district that includes Scottsdale, Paradise Valley and parts of Phoenix. Schweikert beat Democrat Matt Jette and three third-party candidates. Schweikert defeated fellow Republican Ben Quayle in August in a bruising party primary election that was triggered by redistricting.

7th District: Rep. Ed Pastor cruised to re-election in his heavily Democratic south Phoenix district and will serve a 12th term in Congress. Libertarian Joe Cobb was his only opponent.

8th District: Republican Rep. Trent Franks easily won re-election in his heavily Republican district covering the northern and western Phoenix suburbs. The 55-year-old Franks beat Democrat Gene Scharer and Americans Elect party candidate Stephen Dolgos.

The race that was too close to call:

The newly created 9th District race pits former Democratic state Sen. Kyrsten Sinema against former Paradise Valley Mayor Vernon Parker.

Parker has focused on stopping expected tax hikes and developing a tax code he said will help the economy grow and prevent jobs from being sent overseas. Sinema has been touting her ability to work across party lines developed during her eight years in the state Legislature, always in the minority, and her commitment to women's issues.

The new 9th District includes much of Tempe and parts of Phoenix, Scottsdale, Paradise Valley, Mesa and Chandler. Republicans have a slight registration advantage but both parties' totals are exceeded by independents, and many believe it leans Democratic.