Prosecutors are demanding that former U.S. Senator Bob Menendez be given at least a 15-year prison sentence following his conviction for corruption that included acting as an agent of a foreign government. In the sentencing recommendation filed late Thursday in a Manhattan federal court, prosecutors said the 71-year-old Democrat who once represented New Jersey is the first senator convicted of abusing a Senate committee leadership position and the first person convicted of serving as a foreign agent while being a public official. This “historical rarity,” they said, was a “grave abuse of his power.” Menendez’s lawyers say their client has