Read full Chicago Tribune/WGN-TV poll

Favorite son Barack Obama holds a 2-1 advantage over native daughter Hillary Clinton among Democrats looking to cast ballots in Illinois’ Feb. 5 presidential primary, but voters are split between the two when asked who has the best chance of winning the White House, a new Tribune/WGN-TV poll shows.

Among Republicans, Mike Huckabee’s surge of support in Iowa also has reached Illinois. He and former New York Mayor Rudy Giuliani are in a virtual dead heat atop the list of GOP contenders, though few of those polled said they believe Huckabee could win the general election.

The Democratic figures showed Obama at 50 percent; Hillary Clinton at 25 percent, Edwards at 7 percent an all others at less than 2 percent. The Republican poll had at 23 percent, Huckabee with 21 percent, Mitt Romney with 14 percent, John McCain with 12 percent and Fred Thompson with 11 percent. The others were at 3 percent or less. The margin of error was 4.4 percent.