Senate parliamentarian Elizabeth MacDonough on Sunday dealt a significant blow to Democrats' plan to provide 8 million greencards as part of a sweeping spending package, warning it doesn't comply with tight rules that determine what can be in the bill. MacDonough's guidance, a copy of which was obtained by The Hill, likely closes the door to Democrats using the spending bill to provide a pathway to citizenship for millions of immigrants. MacDonough, in her guidance, called the Democratic plan "by any standard a broad, new immigration policy." "The policy changes of this proposal far outweigh the budgetary impact scored to...