2020 US Senate Election Prediction- Democrats will end up with at least 49 seats.

Democrats will hold onto every Democratic held US Senate seat that is up for re-election in 2020 except AL(Jones-D). Jones(D-AL) loses re-election assuming Roy Moore-R does not win the Republican nomination again. 46D
Democrats will pick up Republican held US Senate seats in AZ(McSally-R vs Kelly-D), CO(Gardner-R vs Johnston-D), and NC(Tillis-R vs Smith-D). 49D
The 50th Democratic US Senate seat will be ME(Collins-R vs Pingree-D). Collins(R-ME) can also lose in Republican primary to Paul LePage-R.