Paul Gillmor, whose political career covered four decades, has died.
As a member of the House of Representatives he was a little-known but solid Republican vote, a reliable conservative on social issues, and a strong proponent of the military.
There was no immediate word on the cause of Gillmor's death.
The governor of the Midwestern state Gillmor represented, Ohio, is a Democrat and could name a member of his party to replace him, thereby slightly increasing the Democrats' control of the 435-seat House. Democrats hold the majority 233-202.
"Born, raised and educated in our home state of Ohio, Paul never lost sight of the reason he came to Congress - to serve this great institution and his constituents with dedication and distinction," House Republican Leader John Boehner, also of Ohio, said in a statement.
The body of the 68-year-old congressman was found by staff members who went to his apartment Wednesday after he failed to show up for work, according to a Republican aide who spoke on condition of anonymity pending an official announcement.
Gillmor's office did not respond to a reporter's call.
Gillmor had been in Ohio last week to attend a series of town meetings and tour areas of the state that were hit hard by flooding.
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