Unfortunately for Koster, that amount left him nearly $1 million behind his Republican opponent, former Navy SEAL Eric Greitens.
A 48-hour report filed today with the Missouri Ethics Commission shows Greitens received the largest campaign contribution in state history, $2.5 million from the Republican National Governors-Missouri, which received it earlier in the day from the Republican National Governors based in Washington, D.C.
Greitens broke his own record, set in July when a Super PAC called Seals for Truth gave his campaign $1.975 million.
Though it was by far the biggest contribution Greitens, or anyone else, received today, it was far from the only oversized paycheck to find its way into campaign bank accounts.
Greitens also received $15,000 from Dan Drury, Cape Girardeau, $5,001 from New York businessman Mark Gerson, $25,000 from the Missouri Chamber PAC, and $10,000 from Cameron Dunafon, Columbia.
In addition to the $265,000 from the CHIPP Political Fund, Koster picked up $50,000 from the Simmons Hanley Conroy, Edwardsville, Illinois.