President Joe Biden on Wednesday nominated three postal experts to the governing board of the U.S. Postal Service, a move that could alter the course of an agency grappling with delivery delays and rumored cuts under its embattled Republican leader.

If confirmed by the Senate, the Board of Governors nominees would bring additional Democratic scrutiny on Postmaster General Louis DeJoy, a major GOP donor whose tenure has been mired by slow service and politicization.

The nominees are Ron Stroman, a former deputy postmaster general; Amber McReynolds, a mail voting advocate who leads the nonprofit National Vote at Home Institute; and Anton Hajjar, the former general counsel of the American Postal Workers Union. A White House announcement of the move came just after a long and sometimes tense congressional hearing with DeJoy about the agencys ailing financial health.

President Biden is committed to the USPS success, and these experienced and tested leaders will ensure the USPS is running at the highest of service standards and that it can effectively and efficiently serve all communities in our country, a White House statement read.