Republicans are laying the groundwork to make Hunter Biden and his business dealings a central target of their investigative and oversight efforts. The financial dealings of the president’s eldest son will come under new scrutiny if Republicans win control of one or both houses of Congress this fall. ANDREW HARNIK/AP FILE
Nomaan Merchant, Farnoush Amiri and Eric Tucker ASSOCIATED PRESS WASHINGTON – Intelligence officials had gathered to brief select members of Congress on future threats to…