WASHINGTON — What will the impeachment trial look like? That’s what happened in 1999, when Senate Majority Leader Trent Lott, R-Miss., and the Democratic leader, Tom Daschle of South Dakota, worked out agreements for how Bill Clinton’s trial would run, including its length. Senate Majority Leader Mitch McConnell, R-Ky., hasn’t publicly addressed the rules for a Trump trial, though he’s …