Washington (CNN) - Fresh fundraising numbers might spell trouble for Sen. Blanche Lincoln of Arkansas. The Democrat raised less money in the last filing period than run-off opponent, Lieutenant Gov. Bill Halter.
Both campaigns released campaign finance reports on Thursday.
For the period between April 29 thru May 19, Lincoln's net contributions totaled $552,289.91. Halter raked in $777,119.94. That means Halter outpaced Lincoln by just over $224,830.
Most of Lincoln's total - nearly $233,000 - came from political committees, such as PACS. Just over $319,000 came from individuals.
In contrast, most of Halter's funds - just over $753,000 - came from individuals, whereas just over $24,000 came from political committees.
While Halter may have won this fundraising cycle, Lincoln has the clear edge in cash on hand – holding just over $1.5 million than Halter. The lieutenant governor entered the race just over 12 weeks ago.
Both candidates are locked in a tight runoff that will culminate in a June 8 vote.
The runoff became necessary after neither Lincoln or Halter cracked the required
50-percent threshold of voter support in the May 18 Democratic primary. The race has been expensive and increasingly bitter.
The winner will face Republican Rep. John Boozman in the November election.