Viktor Yanukovych

Manafort out amid scrutiny of covert lobbying campaign

The sudden resignation Friday of Donald Trump's campaign chairman put renewed emphasis on revelations about his past work on behalf of Ukraine's pro-Russian political leaders, including his firm's role directing a covert Washington lobbying operation that would have required him under federal law to disclose his efforts to the Justice Department.

Manafort resigned from the Trump campaign amid scrutiny of his Ukrainian work — but others involved in the once-secret influence campaign remain working for Trump in senior roles, including Manafort's deputy Rick Gates.

The Associated Press reported Manafort's connection to the lobbying effort Wednesday. On Thursday, the AP...