ST. CHARLES • The long-simmering feud between Eric Greitens and John Brunner, two Republicans seeking the party’s nomination for Missouri governor, broke open on a stage at Lindenwood University on Wednesday, with Greitens accusing Brunner of being a campaign saboteur and liar, and Brunner counterattacking over the controversial source of Greitens’ single largest campaign contribution.

“Take responsibility for what your team did,” Greitens demanded angrily near the end of the one-hour debate, which was televised on KMOV-TV (Channel 4).

“(I) refuse to be lectured by a guy who took $1 million from the owner of a teenage sex slave … Have you no shame?” Brunner countered, as the audience of opposing supporters cheered and booed.

Greitens, Brunner and the other two candidates for the nomination — former Missouri House Speaker Catherine Hanaway and Lt. Gov. Peter Kinder — participated in what was otherwise a familiar debate scene, with all four candidates generally agreeing on low-tax, pro-police and pro-gun rights policy goals.

Greitens, a former Navy SEAL and author, is running as a political outsider. Brunner, a former Marine and wealthy retired businessman, argues that his business background will allow him to fix the state’s economy.