JAMES OLIPHANT  WITH Donald Trump running for re-election, the 2020 U.S. presidential election was always expected to be a dramatic and eventful ride. But nobody predicted a global pandemic that would upend every facet of the campaign. Here are 10 pivotal moments from a dizzying election year:  1. TRUMP ACQUITTED, February 5, 2020  At the beginning of the year, things were looking up for the Republican president. Trump's Senate impeachment trial ended with him cleared on two charges brought by Democrats. The fallout from the Mueller Report was no longer hanging over his head. The economy was roaring – and…