How did Underwood die in house of cards?

Related questions

1. How did Tom Yates die?
2. Will house of cards continue without Kevin Spacey?
3. Will house of cards return for Season 7?
4. How does Frank Underwood die on House of Cards?
5. What happened to Rachel in House of Cards?
6. Why did House of Cards get Cancelled?
7. Was Kevin Spacey written off house of cards?
8. Is Kevin Spacey returning for season 6?
9. Will there be a Season 7 of House of Cards?
10. How does Frank Die in House of Cards?

Tags

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2. #south
3. #season
4. #father
5. #michael
6. #underwood
7. #teaser
8. #sixth
9. #finale
10. #shown
11. #cards
12. #killing
13. #buried
14. #reveals
15. #stamper
16. #series
17. #house
18. #order
19. #poisoned
20. #kelly
21. #trailer
22. #right
23. #carolina