Donald Trump’s most loyal soldier, dutifully backing the unpredictable leader through one chaotic situation after another.Now Vice-President Mike Pence finds himself in the most precarious position of his tenure as he prepares to preside over Wednesday’s congressional tally of Electoral College votes, the last front in Trump’s futile attempts to overturn President-elect Joe Biden’s victory in the November election.Seated on the House of Representatives’ rostrum, Pence will bear witness to the formalization of Trump’s — and his own — election defeat, as tellers from the House and Senate record states’ electoral votes.