What to watch for tonight:
Vermont polls close first, at 7pm EST. If Obama isn’t declared victorious by 7:05pm EST, something’s afoot.
Polls close at 7:30 EST in Ohio. Watch this carefully. In past elections, returns from rural Ohio districts (which should favor Clinton heavily) have come in early. Cincy and Columbus also come in reasonably early…
…but precincts in Cincy that favor Obama will be late reporters. And Cuyahoga County (Cleveland) will be tardiest of all; results there will be a trickle until 9:00pm or later.
So, in Ohio, Senator Clinton really needs to be sitting on a 12-15 point lead early on. She’ll actually need to be up by 14-16 points to get her double-digit win (her internal polling shows her up by 10 in OH), because the late results will break towards Obama. Figure that late-reporting from Cuyahoga and Obama-favoring precincts in Toledo and Cincinnati will give him a 4-6% gain on the overall vote vs. Hillary, so do the math. If Obama is within double digits before 8:30 or 9:00 tonight, Hillary isn’t having a good day. If she’s up 14 or more, she’ll proclaim herself the nominee and give her victory speech before those Obama-favoring areas can report and show the lead narrowing.
Ok, then TX. Polls close there at 9:00pm est. Thanks to the record-setting early voting in TX, exit-pollers and data collectors will have a solid idea for how the vote will go fairly early. If the early results have Obama within 3, Hillary is in big trouble, because the late votes coming from election day in Houston, Dallas, and Austin will break heavily for Obama.
RI closes its polls at 9:00 too. Clinton has been up by as much as 12 points here in recent polls, but internals show that there may be some slippage there. This race should be called by 9:15-9:30 for Clinton. If Obama is close, something odd is afoot.
Finally: the Texas Caucuses start at 9:00pm EST (8pm local time). To caucus in Texas, you must show a receipt that you voted in the primary. Expect absolute chaos here, as confused non-primary voters attempt to turn out for the party, and Obama crowds overrun caucus sites. Lord only knows when we’ll see results here.