Player of the Week: Former Rep. Gabrielle Giffords (D-Ariz.)

Former Rep. Gabrielle Giffords (D-Ariz.) on Saturday urged voters to back Ron BarberRonald (Ron) Sylvester BarberPrinciples and actions mean more than Jeff Flake’s words Giffords to lawmakers avoiding town halls: 'Have some courage' Ten House seats Dems hope Trump will tilt MORE, a former aide who was shot during last year’s Tucson rampage that left six dead.

Barber is facing Jesse Kelly, a former Marine and Iraq war veteran who nearly defeated Giffords in 2010.

Giffords retired from the House early this year but has hinted she will return to public life.

“It was incredibly hard for her to resign,” Giffords’s husband, astronaut Mark Kelly, told the Arizona crowd over the weekend. “And the person she knew could represent this district like she did is standing to my left.”

Tuesday’s special election between Barber and Jesse Kelly is expected to be close. 

The district leans conservative, with home-state Sen. John McCainJohn Sidney McCainTrump plan to claw back billion in spending in peril McCain calls on Trump to rescind family separation policy: It's 'an affront to the decency of the American people' Senate passes 6B defense bill MORE (R-Ariz.) having easily defeated President Obama there four years ago. 

Not surprisingly, Barber has sought to put some distance between his campaign and Democrats in Washington, including Obama.

Last week, Barber pushed back against Democrats on Capitol Hill who have used the phrase “Gabby’s seat” in fundraising pleas.

“This is not Gabby’s seat,” Barber told MSNBC. “This is not Ron Barber’s seat. This is the people’s seat.”

Some political pundits will undoubtedly say that Tuesday’s results are a bellwether for things to come this fall. Not so fast.

In 2006, Rep. Brian Bilbray (R-Calif.) won a tough special election to replace Randy “Duke” Cunningham (R), who is now in prison. Republicans breathed a sigh of relief — then lost control of Congress later that year.

Similarly, Rep. Mark Critz (D-Pa.) won the special election to replace the late Rep. John Murtha (D-Pa.) in 2010. Months later, Democrats lost 63 House seats and control of the lower chamber.

Giffords has not indicated whether she will campaign for other Democrats this fall, including Obama. But Obama’s campaign has hinted it might seek to compete in Arizona, and if it does, Giffords could be asked to help the president.