WASHINGTON—Joe Biden and Bernie Sanders are arguing about Mr. Biden’s position on Social Security. Elizabeth Warren confronted Mr. Sanders over whether he told her a woman couldn’t be elected president. Ms. Warren and Pete Buttigieg have sniped at each other over fundraising. But there is no sign of the enmity—shown online and in debates in recent months—in the Democratic presidential campaign that is playing out on Iowa TV screens. In a barrage of 85 different ads that have aired more than 72,000 times in the past two months...

Source: Wall Street Journal January 24, 2020 12:03 UTC