ALBUQUERQUE MAYOR MARTIN CHAVEZ ENTERS THE RACE TO REPLACE PETE DOMENICI IN THE UNITED STATES SENATE. THE FIRST MAJOR CANDIDATE TO JUMP IN ON THE DEMOCRATIC SIDE MADE HIS FORMAL ANNOUNCEMENT JUST BEFORE NOON TODAY. STUART DYSON WAS THERE - AND HE'S IN OUR NEWSROOM NOW WITH A LOOK AT HOW THE CAMPAIGN IS SHAPING UP. CHAVEZ SAYS HIS DECISION TO RUN WAS A TOUGH ONE - BUT FRIENDS SAY IT WOULD HAVE BEEN TOUGHER FOR HIM TO STAY OUT - NOW THAT PETE DOMENICI TO COVER BEFORE THE NOVEMBER THE NOVEMBER 2008 ELECTION. EXCLUSIVE SURVEY U-S-A POLL NUMBERS RELEASED YESTERDAY SHOW THAT HEAD TO HEAD-- REPUBLICAN REPRESENTATIVE HEATHER WILSON IS POLLING AT 48- PERCENT AROUND THE STATE-- FOUR POINTS BETTER THAN MAYOR CHAVEZ. STILL-- EIGHT PERCENT OF VOTERS SAY THEY'RE UNDECIDED-- WHICH COULD MAKE A HUGE DIFFERENCE. AND DEMOCRATIC PRESIDENTIAL CONTENDER DENNIS KUCINICH WILL STUMP IN ALBUQUERQUE TODAY. THE OHIO CONGRESSMAN WILL SPEAK THIS EVENING AT CENTRAL NEW MEXICO COLLEGE'S SMITH-BRASHER HALL--...