If we hold every seat we hold now and win NV and AZ, we are still at 50.
We would have to win WY, NE, UT, TX, MS, or TN to get a majority assuming that no Republican resign or die in the middle of the term.
I'd say the best hope is to try to recruit Jim Matheson. Maybe Texas if there's a good candidate there.
If there's a Dumpster Fire a brewin' we will find people. We might be able to get someone in Texas. We really need to start winning down ballot in Red States again. There are how Red State Democrats now? 9? Maybe getting to 12 or 14 wouldn't be a bad idea. In 2007, we had 13 with just 3 more senators.
We can probably win 23 seats if we win by at 5% in the HOR, right?
And we really need to start retaking these deep red down ballot swing states. If there is a recession, we need to move on NV,FL,AZ,WI,MI,PA,ME,NH,NC,GA,NM...you name it.