(CNN) The White House plans to withdraw the nomination of Jeff Byard, President Donald Trump's pick to lead the Federal Emergency Management Agency, seven months after he was nominated to the position, a senior administration official and congressional source tell CNN.

Instead, Trump is expected to nominate acting FEMA Administrator Peter Gaynor -- who is the agency's confirmed deputy administrator -- for the top disaster relief position, the sources said.

Axios first reported the news, and CNN reported earlier Wednesday that Byard's nomination was in trouble.

The White House declined to comment.

Issues with Byard's confirmation stemmed from a personal issue that surfaced in the last week, and Byard requested last Thursday that his nomination be withdrawn, according to a letter obtained by CNN

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