In his 2000 book, The America We Deserve, Trump criticized Republicans who “walk the NRA line” and “refuse even limited restrictions” on firearms laws. “It’s often argued that the American murder rate is high because guns are more available here than in other countries. After a tragedy like the massacre at Columbine High School, anyone could feel that it is too easy for Americans to get their hands on weapons. But nobody has a good solution,” he wrote. “This is another issue where you see the extremes of the two existing major parties,” continued Trump, who, at the time of...