What is a political slate card?

Related questions

1. Why is Slate expensive?
2. How do I cancel my subscription to Slate?
3. How many electoral votes did Trump get?
4. What color is slate rock?
5. What type of rock is Slate?
6. Is Slate harder than shale?
7. Is slate flooring slippery?
8. Can a board member hold two positions?
9. Are slate floors expensive?
10. Which states will lose their seats 2020?

Tags

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2. #winning
3. #slates
4. #before
5. #things
6. #known
7. #there
8. #message
9. #slate
10. #office
11. #hands
12. #making
13. #purchasing
14. #money
15. #candidate
16. #targeted
17. #smart
18. #guides
19. #saving
20. #running
21. #voter
22. #voters
23. #placement
24. #purchase