The Republican nominee for U.S. House, Florida 20th district, special election of January 2022, is an ex-felon. Jason Mariner nevertheless won the Republican nomination in this overwhelmingly Democratic district. Under case law going back over 100 years, his ex-felon status makes no difference; he can run for Congress because the U.S. Constitution sets forth the requirements to be a member of Congress, and states cannot add to them.
Nevertheless, according to this story, some Florida officials don’t know the caselaw and wonder if he is eligible to run. Thanks to Ken Bush for the link.
Mariner defeated his only opponent in the Republican special primary of November 2. He polled 58%.