The special election on June 12 to complete Gabrielle Giffords' congressional term is truly a rarity in the state.

It will be only the fourth congressional special election in the state's 100-year history. Can you remember the winners and whom they replaced in the three previous special elections? Find the answers below, and we'll even give you a hint: Morris K. Udall was involved in two of them.

Locked open-door policy

Mayor Jonathan Rothschild's oft-repeated "open-door policy" for the mayor's office has one hitch - the door is locked.

Since becoming mayor, Rothschild began locking the door to his 10th-floor office and uses a buzzer and intercom system for access.

Visitors are greeted by a sign saying, "Welcome to the mayor's office. Press the call button on the intercom once to ring, and please state your reason for the visit. If you have an appointment, please state your name."

The security system is the first at City Hall since former City Manager Mike Hein dismantled then-Mayor Bob Walkup's security system in 2005, which required visitors to sign in as soon as they entered the first floor of City Hall.

Rothschild said he is just providing "some security" at City Hall when there previously was none. He said he's been in plenty of city headquarters that have more.

Despite the locked door, Rothschild said he's still open. And readers can rest easy - here at Notebook we were buzzed right in.

Let the blitz begin

If you haven't already, you'll begin seeing TV ads from the CD8 Republican candidates. Jesse Kelly, Dave Sitton and Martha McSally have ads on the air. Frank Antenori does not have a TV ad, but has a radio spot.

Kelly's ad promotes his ability to help Southern Arizona families by growing the economy, creating better jobs and protecting seniors.

"I'm running for Congress because I believe we can do better," Kelly says in his 30-second ad. "The American dream is working hard, seeing the fruits of your labor and passing that down to the next generation."

McSally has two 30-second spots that tout the experience she gained while serving as colonel in the Air Force. She says the country needs to rein in debt, get the economy going and unshackle the American spirit.

Sitton's 30-second ad portrays him as a leader in the community who is concerned about the future of our country, but not a politician. The ad says Sitton will fight for job creators, fiscal discipline, real health-care reform and the security of our borders.

"He cares passionately about Southern Arizona," the narrator says. "Let's elect Dave Sitton, the conservative Republican we really need now in Washington."

In his 60-second radio advertisement, Antenori talks about his experience as a Green Beret and says he can help fix the problems with a federal government run by self-serving politicians.

"You trusted me and sent me to the Legislature. We turned a $3 billion deficit into a surplus," Antenori said. "There is a job to be done in D.C. Let's hit the ground running to restore our economy, protect our freedom and preserve our greatness."

Special Elections

Think you know who won Arizona's first three congressional special elections? Here are the answers:

In 1991, Democrat Ed Pastor defeated Republican Pat Conner in a special election in Congressional District 2 to replace Demo-crat Morris K. Udall, who resigned due to his deteriorating health.

In 1961, Udall defeated Republican Mac Matheson by fewer than 2,000 votes in a special election in CD2 to replace his brother Stewart Udall, a Democrat who was appointed secretary of the interior by John F. Kennedy .

In 1933, Democrat Isabella Greenway won in a landslide over Socialist candidate D.E. Sumpter and Republican H.B. Wilkinson, with 73 percent of the vote, in a special election in Arizona's only congressional district to replace Lewis Douglas, who had been appointed the U.S director of the budget. The victory made Greenway, founder of the Arizona Inn, the state's first congresswoman.

Star Reporter Rob O'Dell contributed to this story. Contact reporter Brady McCombs at 573-4213 or