WASHINGTON — Some Illinois gun control advocates recall Senator Obama as a "friend" who represented a "solid vote" in favor of increased restrictions on firearm sales, but they said he was never forced to vote on an all-out ban on handguns as a member of the state Senate. Mr. Obama's position on guns is drawing renewed scrutiny following Wednesday night's Democratic debate, when the Illinois senator said he never favored a handgun ban, even though a 1996 questionnaire in his name indicated he did. The candidate questionnaire was filed with a nonprofit group, Independent Voters of Illinois–Independent Precinct Organization, during...