Pelosi knows that there was far more that was possible. But she did not want impeachment under any circumstances, and only came out for it when her back was against the wall. And now she is doing everything in her power to get impeachment off the table again – and doing enormous damage to the country and the constitution in the process.
The pelosi cultists will tell you that her first priority is, and should be, maintaining Democratic control of the House. I believe them – and look at her actions based on that priority. And its obvious that Pelosi sees that the only way to guarantee Democratic control of the House in 2020 is to make sure Donald Trump is the GOP nominee for President.
And once you understand that – all of her actions fall into place. Pelosi functions as Trump’s #1 enabler — because that is the way that she can guarantee that Dems retain control in the House. If Trump is convicted, or forced to resign, or doesn’t run in 2020, everything is up in the air – the GOP could conceivably win both the White House and the House itself, with the right presidential candidate.
And Pelosi’s supporters will tell you that is unacceptable to her – that her #1 priority to to prevent that from happening.