Rep. Elijiah Cummings of Maryland died Thursday morning at age 68, according to his office.
He died of "complications concerning longstanding health challenges," his office said in a statement.
Cummings had failed to return to his office as expected this week following a medical procedure, according to reports.
The Democratic congressman has represented Maryland's 7th Congressional District since 1996 and served as the chairman of the House Oversight and Reform Committee, which is one of the committees involved in the impeachment inquiry of President Donald Trump.
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