COMMENT:
US House Speaker Nancy Pelosi has recognised that if the American public is not in favour of impeachment, there will be no pressure on Senate Republicans to vote for removal, President Donald Trump will be acquitted and he and his followers will feel vindicated.
As a result, Trump and the Republicans might get the lift they need for re-election. She has not bought into the idea that the public will warm to impeachment as the proceedings unfold.
I have generally been sympathetic to her position, in large part because Democrats have been unable to communicate in concise and vivid terms the "High Crimes and Misdemeanours" at issue. Trump, through a fog of lies and obstruction, has made the Russia investigation unintelligible for most Americans. Egregious corruption is easier to explain and prove. It is politically untenable to use the Mueller report as the basis for impeachment.
However, with the allegations (and virtual public confession) that Trump went to a foreign power, Ukraine, to dig up dirt on former Vice-President Joe Biden, his most likely opponent, and may even have extorted Ukraine using taxpayer money, the calculus may change dramatically.