AMES, Iowa (AP)- Democratic presidential candidate Joe Biden has mostly sidestepped President Donald Trump’s impeachment trial as he campaigns in Iowa this week. But Biden and his advisers know the trial 1,000 miles away on Capitol Hill could color the closing days of the first nominating contest as much as anything Biden says to Iowans. Biden’s campaign is urging the media not to repeat Trump’s discredited claims about his son Hunter’s work in Ukraine and his own foreign policy role in that country when he was vice president. But the Biden campaign also insists that the trial won’t distract from Biden’s closing message to Iowa voters.