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    Manafort resigns from Trump campaign

    Trump campaign chairman Paul Manafort spoke to reporters at the Republican National Convention.
    Matt Rourke/Associated Press/File
    Trump campaign chairman Paul Manafort spoke to reporters at the Republican National Convention.

    WASHINGTON — Donald Trump’s campaign chairman Paul Manafort resigned on Friday in the wake of campaign shake-up and revelations about his work in Ukraine.

    In a statement issued as he arrived in Louisiana to tour the flood-ravaged state, Trump said Manafort offered his resignation Friday morning. The billionaire called Manafort ‘‘a true professional.’’

    ‘‘I am very appreciative for his great work in helping to get us where we are today, and in particular his work guiding us through the delegate and convention process,’’ Trump said.

    RELATED | Michael A. Cohen: Trump pivots toward unleashing his id by demoting Manafort as campaign chair


    Manafort’s resignation comes a day after The Associated Press reported that confidential emails from Manafort’s firm contradicted his claims that he had never lobbied on behalf of Ukrainian political figures in the U.S.

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    Emails between Manafort’s deputy, Rick Gates, also a top Trump adviser, and the lobbying firm Mercury LLC showed that Manafort’s firm directly orchestrated a covert Washington lobbying operation on behalf of Ukraine’s then-ruling political party.

    RELATED: Ukraine details payments allegedly earmarked for Trump aide

    The effort included not just legislative outreach but also attempts to sway American public opinion and gather political intelligence on competing lobbying efforts in the U.S.

    Manafort and Gates never registered as foreign agents for their work as required under federal law.

    Also Friday, Ukrainian anti-corruption investigators released copies of handwritten ledgers detailing possible cash payments from Ukrainian political figures to Manafort totaling more than $12 million. Details of the payments described in the ledger were first reported by The New York Times. Manafort denies receiving those payments.

    RELATED: Ukraine “secret ledger” lists cash for Donald Trump’s campaign chief


    Earlier this week, Trump brought in a new campaign chief executive and campaign manager following a disastrous stretch in which the New Yorker committed a series of errors and fell behind Democratic nominee Hillary Clinton in both national and battleground state preference polls.

    RELATED: Clinton campaign questions Manafort’s tied to Ukraine

    The new campaign manager, Kellyanne Conway, had described Manafort and Gates as part of a new ‘‘core four’’ atop the Trump operation with her and CEO Stephen Bannon.