Sure thing Michael's initial public office “a shoo-in for Congress” thanks to the Corleone magic
Everybody undoubtedly knew who Michael was - “top Mob Boss'” son - and Michael's opponents are not going to sit back and let him have an easy, uneventful run of Congress-Senate-Presidency! without running an ignominious [successful] campaign to disgrace him
All the murderous, sordid history of Michael's family notoriety is out there for his opponents to shame him and to dishonour him
Easy pickings! indeed
I reckon Michael could have had a "legitimate future" even after that "Solozzo business" but not "Public office" unless perhaps Vito decides to end the Corleone's involvement in any criminal businesses
No doubt initial election thanks to the Corleone magic however holding on and getting elected to a major political position, I reckon is not possible, with the murderous, criminal enterprises of Michael's family notoriety
