A month out from the Democratic runoff in Alabama, attorney Terri Sewell was sitting on a 20-point lead over Jefferson County Commissioner Shelia Smoot in the 7th district, according to a new survey done for Sewell’s campaign.

Sewell was at 53 percent to Smoot’s 33 percent in the survey of 400 likely runoff voters that was conducted for Sewell’s campaign by Anzalone Liszt Research from June 13-16. The poll had a 5-point margin of error.

Sewell beat Smoot by 8 points in the June 1 primary, and the poll indicated that some of Sewell’s post-primary gains came from voters who supported the third-place finisher, state Rep. Earl Hilliard Jr. The poll showed Sewell led 48 percent to 38 percent among voters who supported Hilliard.

Hilliard, the son of the district’s former Congressman, has said he will not endorse in the July 13 runoff.

On Thursday, Smoot called for a series of debates, saying voters weren’t hearing enough about the candidates’ visions for the future of the district.

In the safely Democratic seat, the winner of the runoff is all but certain to replace Rep. Artur Davis, who lost his bid for the Democratic gubernatorial nomination on primary night.