WASHINGTON -- Sen. Kelly Ayotte (R-N.H.) has turned down a dinner invitation during the congressional recess from a woman whose husband was killed by gun violence.

Anne Lyczak lost her husband Richard inJanuary 1994, when he was killed in a drive-by shooting in Portsmouth, N.H.

Last week, Lyczak wrote a letter to Ayotte, inviting her to dinner at her house to talk about ways to prevent gun violence. The senator recently voted against legislation sponsored by Sen. Joe Manchin (D-W.Va.) and Pat Toomey (R-Pa.) that would have expanded background checks for gun buyers. Lyczak said she was "disappointed" by Ayotte's vote.

"I believe that expanding and strengthening our background check system, which has stopped more than two million attempted purchases by dangerous people since its inception in 1998, will save lives," wrote Lyczak in her letter. "And this is something that your constituents support -- 89 percent support going beyond the provisions of the Manchin-Toomey amendment to require a background check for every gun purchase."

Lyczak proposed dinner with Ayotte on May 1, although she said she would happily work around the senator's schedule.

Ayotte's office, however, turned down Lyczak's request, saying the senator would keep it under consideration for the future. Ayotte's office cited scheduling constraints, according to an email shared with The Huffington Post by the group Mayors Against Illegal Guns, which backed Manchin-Toomey.

"Unfortunately, the Senator’s schedule had been planned for some time and she is already committed to events and meetings for this state work period," read the email. "If you would like, I can keep your request in our queue and let you know when an opportunity arises.