GOP voters crossing over in large numbers  —  Poll watchers throughout Ohio are noting large numbers of Republican voters crossing over to vote in the Democratic Primary between Barack Obama and Hillary Clinton.  —  In the Republican roost of Chagrin Falls, veteran poll worker Liz McFadden …

Highlights of Early Exit Poll Results  —  Highlights of preliminary results from exit polls conducted for The Associated Press and television networks in Tuesday's presidential primaries in Ohio, Texas, Rhode Island and Vermont:  —  ___  —  OPEN TO ALL  —  The primaries in Ohio …

Clinton scrambles to freeze defectors  —  A behind-the-scenes battle broke out late Tuesday over superdelegates who had secretly committed to Sen. Barack Obama (D-Ill.), with Clinton campaign officials scrambling to “freeze” them before they announced support for him.

EXIT POLL: ‘Change’ Tops 'Experience"... Again  —  In Vermont, Obama Wins Across All Demographic Groups  —  The theme of change continues to resonate in Ohio and Texas, but not by as wide a margin as in most previous primaries.  The ability to “bring needed change” beats “experience” …

Gallup Daily: Obama 45%, Clinton 45%  —  Based on polling conducted March 1-3, 2008  —  PRINCETON, NJ — Gallup Poll Daily tracking finds Hillary Clinton and Barack Obama tied once again, with 45% of Democratic voters nationwide preferring each as the party's 2008 presidential nominee.

Live from Hillaryland  —  Here in Columbus, Ohio, Hillary Clinton will meet her public tonight after what looks to be a successful day in Ohio.  The campaign is broadcasting CNN on a giant projector screen for the crowd of several hundred, which just cheered after seeing a graphic …

EARLY EXITS  —  I'm looking at the second wave of exit polls.  They show an Obama blowout in Vermont, which was entirely expected and basically dead even in Texas, Ohio and Rhode Island, the latter two of which would be pretty substantial surprises.  At this point in the cycle, though …

Early Views From The Clinton/Obama Campaigns  —  Note: NONE of this information comes in any way from my own knowledge of embargoed exit polls.  All references to the exit polls come from the campaigns themselves.  —  The Obama campaign expects to net seven or eight delegates out of the night …

Open thread: Armageddon; Update: Exit polls show Hillary win in Ohio?  Update: Report — Huckabee to concede tomorrow; Update: Fox says McCain clinches nomination  —  Exit polls are just starting to trickle in.  Nothing yet by way of hard data but — surprise — voters in both Texas …

As Four States Vote, Clinton Talks About a Long Battle  —  As voters in Ohio, Rhode Island, Vermont and Texas headed to the polls potentially to decide the Democratic nomination for the presidency, Senator Hillary Rodham Clinton on Tuesday urged voters to settle in for a nomination fight that could roll on for months to come.