Boehner swears in Illinois's Kelly as latest House member

After being welcomed by members of the Illinois delegation, Kelly thanked her new House colleagues and members of her family, who were present in the gallery. She cited reducing gun violence as a top priority for her as a member of the House.

"I ran for Congress so that I could work to bring about a safer, less violent and more prosperous future, one in which our children could grow up without the fear of gun violence," she said. But she said that she also wants to ensure that the Second Amendment rights of law-abiding Americans are protected.

Kelly also said she wants to help ensure job creation in the country, and work to improve the U.S. healthcare and immigration systems.

Jackson resigned in November, a sudden downfall for the 17-year member that happened amid ethics charges involving his abuse of campaign funds.