2020 US Senate Election- How Democrats could end up with 60 seats?

2018- Democrats will end up with 50 seats.
2020- AL is the only Democratic held US Senate seat up in 2020 that is likely to flip barring a controversial GOP nominee.
Democrats need to win 11 Republican held US Senate seats in 2020.
1)CO- Neguse-D
2)AZ- Gallego-D
3)NC- Foxx-D
4)GA- Tomlinson-D
5)IA- Finkenauer-D
6)ME- Golden-D
7)MT- Bullock-D
8)TX- O'Rourke-D
9)KY- McGrath-D
10)LA- Bel Edwards-D
11)SC- Smith-D