UPDATED, 3:45, with the latest campaign figures from Hawley.
The re-election campaign of U.S. Sen. Claire McCaskill, D-Mo., raised more than $4.3 million in campaign contributions in the second quarter of 2018 — more than twice the amount raised in that time by likely Republican challenger Josh Hawley — with 85 percent of McCaskill's money coming in donations of less than $100, her campaign announced Wednesday.
Sunday is the legal deadline for candidates to reveal their fundraising sources and numbers for April through June. McCaskill's early public release of the numbers came with a statement touting a total of 146,000 donors since January 2017, giving an average donation of $67 each.
McCaskill's campaign ended the quarter with about $12.2 million cash on hand, the campaign said.
High numbers of individual donors giving low average donations are often cited by candidates as proof of grassroots support, in contrast to fewer donors giving big donations. The campaign's statement claimed the numbers show "grassroots support behind Claire is stronger than ever."
In response to a Post-Dispatch request, the campaign of Hawley, Missouri's attorney general and McCaskill's likeliest Republican challenger in November, issued a statement saying its yet-unreported total receipts for the second quarter were $1.87 million, and that he ended the quarter with just over $3 million on hand.
The statement called McCaskill "the candidate of Big Money" and accused her of "trolling for donations . . . in places like California."
McCaskill is widely viewed as one of the most vulnerable incumbent Democratic senators in America this year, and the battle for her seat is getting national attention.