By Alina Selyukh
WASHINGTON (Reuters) - The Republican National Committee said on Friday it raised $13.7 million in March, its biggest haul so far this campaign season.
The committee, an engine of Republican Party fundraising for races for the U.S. Congress, has been digging itself out of a multimillion-dollar debt and on Friday said it owed $9.9 million at the end of March -- $1 million less than a month earlier.
The committee started fundraising jointly this month with Mitt Romney, the party's likely presidential nominee. It had $32.7 million in cash on hand at the end of March.