The Iowa caucuses, a major political event in the United States, were held yesterday. The event was captured through photos on Instagram by major news organizations such as Good Morning America and PBS NewsHour. Most notably, President Barack Obama joined Instagram to share his first Instagram photo, a behind-the-scenes shot as he addressed Iowa caucus-goers.

Photos by barackobama, laur9231, newshour, goodmorningamerica, lolo_victoria, skenigsberg, chrismziegler, s2t2 & kylemunson.