Rob Schaaf rose Monday to speak on the Missouri Senate floor, capping what seemed to be a tough few days. One of his fellow GOP senators had highlighted how the 60-year-old from St. Joseph rented a room from a well-known lobbyist. And the nonprofit linked to Gov. Eric Greitens was making personal attacks on Schaaf’s political decision integrity — and giving out his cellphone number. But Schaaf made it abundantly clear he wasn’t slinking away, issuing a blunt message to the Republican governor.