Karen Tumulty: How to make voting go more smoothly

It has now been two weeks since the midterm election, and in some states, ballots are still being counted.President Donald Trump says that is evidence of something seriously amiss. He has trafficked in wild and unsubstantiated theories, claiming that some ballots showed up "out of nowhere" while others were forged or went missing. He even says he has witnessed people donning disguises to vote multiple times.This is perhaps no surprise, coming from someone who preposterously attributes his loss o