RICHMOND, Va. (AP) _ The former assistant to the wealthy businessman at the center of the corruption case against former Virginia Gov. Bob McDonnell and his wife is testifying for the prosecution. Jerri Fulkerson told a jury Wednesday about her involvement in arranging trips for members of the McDonnell family and writing checks for two loans totaling $70,000. She said she did so at the direction of her boss, Jonnie Williams. Bob and Maureen McDonnell are charged in a 14-count indictment with accepting more than $165,000 in gifts and loans from Williams, then the CEO of dietary supplements maker Star Scientific Inc., in exchange for promoting his products. Williams is expected to testify under immunity as the prosecution’s star witness. Defense attorneys said Tuesday that Maureen McDonnell had developed a “crush” on Williams.