CLOSE RACES IN CRITICAL MIDTERMS.

DAVID MUIR (ABC NEWS) (Off-camera) Good evening tonight from ABC News election headquarters here in New York City on the eve of this crucial midterm election. We have several developing stories we come on the air tonight. What could soon be a hurricane bearing down on Florida tonight, and then right up the East Coast. Also, House Speaker Nancy Pelosi, her first interview on the attack on her husband, the police at her door, and Speaker Pelosi tonight on her future in Congress. But we are going to begin tonight, of course, with the critical midterm election where the key Senate races that will determine control of the Senate are in a dead heat going into Election Day. This will all come down to turnout. And take a look at this tonight. [ABSTRACT FROM PUBLISHER]