Candidates are starting to enter the race to replace Congresswoman Gabrielle Giffords, who resigned to focus on recovering from last year's shooting.

State Senator Frank Antenori (R) was the first to say he’s running to fill the remainder of her term, which extends through the end of this year. He represents Legislative District 30. That district covers the east side of Tucson, plus Green Valley and Sierra Vista.

Yesterday, state Rep. Matt Heinz (D) said he’s also running to fill the rest of the term. He represents residents of Tucson’s south side.

Both of those legislative districts overlap with Congressional District 8, and neither of the candidates said he would resign his legislative seat right away. Both say they're also running for a full term in the new Congressional District 2 in the fall election.

More candidates are expected to enter the race in the coming days, but the deadline is looming. Those who want to run have until February 27 to file nominating petitions to make it on the April 17th primary ballot, leaving less than a month to get a campaign up and running and gather hundreds of signatures.