House Democrats will spend $150,000 on the special election to replace former Rep. Gabrielle Giffords (D-Ariz.) — the same amount House Republicans said they're spending on the race.

The Democratic Congressional Campaign Committee will go up with an ad buy on broadcast television in Tucson, Ariz. within 48 hours, a Democratic source confirmed.

Earlier Thursday, the National Republican Congressional Committee said it would spend $150,000 to support Jesse Kelly, the Republican nominee to finish Giffords's term. A GOP source said the NRCC ads would air for two weeks on broadcast TV in Arizona.

Both parties are keen on the competitive seat in southern Arizona that Giffords vacated when she resigned in January, one year after being critically wounded in an assasination attempt in her district.

Kelly, a veteran and Tea Party favorite who narrowly lost a challenge to Giffords in 2010, edged out three other Republicans in the April special primary to finish Giffords's term.

Ron BarberRonald (Ron) Sylvester BarberKavanaugh nomination a make or break moment to repeal Citizens United Latina Leaders to Watch 2018 Principles and actions mean more than Jeff Flake’s words MORE, who served as Giffords's district director and was shot twice in shooting spree that also injured Giffords, ran unopposed in the Democratic primary to replace his former boss. Giffords asked Barber to run and has endorsed his candidacy.

Barber and Kelly will square off in a June special regular election that is being conducted under the current congressional map, which give Republicans an advantage. A separate, regular election for the full term starting in 2013 will be held in the fall under new lines that make the district slightly more favorable for Democrats.

The Hill rates this race a toss-up.