Trying to win the game with one card

Why are the Democrats not playing every card they have? The polls show that public opinion hasn't moved on impeachment but only the Ukraine card has been played so far. What about the long list of other offenses the orange Ass mole has committed?

I think the articles of impeachment should include everything, emoluments clause, obstruction, bribery, lying, everything, mistresses, acts of incitement conduct unbecoming a president of the United States. Throw everything but the kitchen sink at him, something will stick. Why not? Democrats say that they want to keep it simple so the public can understand but that means you basically have one shot to sway them. Say somebody isnt totally convinced about the impropriety of the Ukraine scandal, but they might be swayed by something else on the list. Let everything come out, make the list so long that the pattern of malfeasance becomes self evident. I guarantee he would do the same to the Democrats

Why the rush? Its going to die in the Senate anyway, why the rush to the end? Or worse yet it will be turned into a circus in the Senate. Let the list of offenses be so long that the Senate will make fools of themselves trying to defend it. And let it drag on into the election, are people less likely to vote for a President who was exonerated in the Senate or a President who is currently under investigation for crimes or currently awaiting trial? Lets hear from every witness, I want to hear from Mulvaney, Pompeo, Guilianni, (funny that spell check wanted to change Guilianni to anilingus) nothing they say will make things better for Trump and he knows it otherwise he not only would have let them testify, he would have forced them to. We all know the Senate will not convict so why are we in a hurry to let them have their way? Everything needs to go in the history books. Democrats seem to be more interested in "keeping it simple" but a shotgun does a lot more damage than a target rifle.