Going into the final days of the campaign, a nationwide Times Mirror survey finds the Republican party with about enough popular support to capture control of the House of Representatives, but not enough to guarantee such an outcome. Further, the trends observed in the survey suggest that the Democrats may narrow the margin even more. Most importantly, the GOP edge in support over the Democrats has consistently diminished in polls conducted over the course of the past four weeks. Secondly, the percentage of undecided voters has increased in each survey, which is unusual and suggests an unsettled electorate. Third, the percentage of voters saying they would like to see their incumbent re-elected has also improved since early October.