By Evan Bleier A history major who graduated from Williams College in 1968, David Sipress went on to the Master’s Program in Soviet Studies at Harvard University, but he dropped out after two years to pursue his true passion. Six months later, his first cartoon was published in The Boston Phoenix, where Sipress went on to serve as the weekly cartoonist for 25 years. Sipress now lives in Brooklyn and has been a staff cartoonist at The New Yorker since 1998, publishing nearly 700 cartoons in the magazine. Sipress, the 2016 winner of the National Cartoonists Society’s Reuben Award for Gag Cartoon…