Where does the dems come up with these liberal fools McGovern, Mondale, Gore, Kerry, Carter, Obama?

Doest it look like they would see the futility in nominating these fools? Out of the list Carter is the only one elected and we all know what a fiasco that was. Doesnt it look like they could come up with someone who has good sense and leadership ability and isnt it like they are trying to destroy themselves with these fools? Oh sorry i left out cigar bill