Q&A with building trades leader on his union’s support for Hillary Clinton and its dealings with Donald Trump

A year ago, I interviewed Sean McGarvey, president of North America’s Building Trades Unions, about areas where his labor union was working with business groups, such as getting a highway bill passed and ending the so-called “Cadillac tax” on high-value health insurance plans. This week, I sat down with McGarvey again to talk about the…