The presumed incoming Democratic Chairman of the U.S. House Judiciary Committee said on Tuesday he plans to investigate the drastic spike in hate crimes and whether federal investigators have wrongfully targeted racial and ethnic minorities instead of focusing on white supremacist groups.

In a letter to the Justice Department, FBI and Department of Homeland Security, Congressman Jerrold Nadler complained that the agencies had all failed to address prior inquiries about hate crimes and surveillance activities that Democrats made when Republicans controlled the U.S. House of Representatives.

"To date, we have received little or no substantive response to any of these communications," Nadler wrote.