Hello it's Tuesday, March 4, 2008. I'm Rebecca Field in for Kristin Volk today with your UPI headline update. Voters in four key states are heading to the polls today...a day that may give a clearer picture as to who will battle for the White House. Contests are being held in Rhode Island, Vermont, Ohio and Texas. The results could secure Republican John McCain the nomination. As for the Democrats, political analysts say winning Ohio and Texas is crucial for Hillary Clinton to stay in the game against Barack Obama. Right now, recent poll results show the contest is too close to call. Secretary of State Condoleeza Rice is in the Middle East today, trying to resume halted peace talks. Rice met with the Egyptian Foreign Minister in Cairo yesterday to discuss the recent violence in Gaza. Her visit comes one day after Israeli officials ended a ground offensive targeting Palestinian militants. The offensive was in response to rockets being fired into Israel last week. Rice will meet with top Palestinian and Israeli leaders later this week to try and get peace talks back in progress. Groups of protesters took the streets in Russia yesterday in response to the Presidential election results. Kremlin candidate Dmitry Medvedev took an easy win on Sunday taking more than 70 percent of the votes. More than 300 riot police reportedly clashed with opponents...many of them having to detain activists. Some protesters say the elections were pre-planned and Medvedev was missing any real competition. President Bush honored a Korean war hero with the Congressional Medal of honor yesterday. Army Master Sgt. Woodrow "Woody" Keeble, who died nearly 26 years ago, was awarded the medal for his bravery, helping fellow soldiers in Korea. Keeble is the first Sioux Indian to receive the honor and only the tenth veteran to be awarded the medal from Bush. Keeble's stepson Russell Hawkins accepted the honor on his behalf. That's all for now. Check out upi.com for all our special segments. Thanks for watchin