Antawn Jamison scored 21 of his 28 points after halftime, Caron Butler made two big baskets down the stretch and the Washington Wizards put together a rare winning streak Monday with a 97-92 victory over the visiting Portland Trail Blazers. Jamison was 3-for-10 from the field at halftime, but he shot 7-for-11 in the second half in a game that was close throughout. The victory gave the Wizards two wins in a row - only the fourth time they've accomplished that in a distressing season that includes last week's guilty plea to a felony gun charge by three-time All-Star Gilbert Arenas. Randy Foye added 19 points ,and Butler had 18 for the Wizards, who made 25 of 28 free throws.