Chief Justice John Roberts appeared Monday to be the key vote in whether the Supreme Court considers expanding gun rights or sidesteps its first case on the issue in nearly 10 years.
Georgia Republican Sen. Johnny Isakson, a conservative who is often considered a voice of the caucus, emerged from Tuesday's lunch saying, "Many of us feel like doing nothing is not a satisfactory answer."
Harris joined Vermont Sen. Bernie Sanders, Massachusetts Sen. Elizabeth Warren, New Jersey Sen. Cory Booker and former Housing Secretary Julian Castro in calling for the big-box store to end its gun sales.