Signature matches, late-arriving absentee votes, drop boxes secrecy envelopes: Democratic and Republican lawyers already have gone to court over these issues in the run-up to Tuesday’s election (US time). But the legal fights could take on new urgency, not to mention added vitriol, if a narrow margin in a battleground state is the difference between another four years for President Donald Trump or a Joe Biden administration.
Roughly 300 lawsuits already have been filed over the election in dozens of states across the country, many involving changes to normal procedures because of the…