Donald Trump Jr., son of U.S. President Donald Trump and executive vice president of development and acquisitions with the Trump Organization Inc. (Photographer: Joshua Roberts/Bloomberg)

Trump Jr. Hits the Trail for GOP, Raising Dollars and Attention

(Bloomberg) -- In Republicans’ fight to maintain control of Congress, there are the wealthy free-spending super PACs, the president’s stadium-filled rallies, and the traditional party machinery. Th...