It’s more than a potential. The district is close to obsolete. It was drawn to be a Democratic vote sink, but the partisan alignment of that region has changed massively since 2011. It’s entirely possible that if this wasn’t a redistricting cycle, it would flip to the GOP under its current boundaries in 2022; it only went for Joe Biden by about 4% in 2020 (Obama won it by 27% in 2012). Tim Ryan saw the writing on the wall and decided to lose a Senate race rather than get pushed out of the House.