Penn State University President

will either resign or be voted out by the end of today, a source close to the board of trustees told The Express-Times.

An interim president, most likely Executive Vice President and Provost

, will be appointed and a nationwide search for a permanent replacement will begin, according to the source who requested anonymity.

Spanier was made aware in 2002 that a graduate assistant coach had seen former assistant coach

allegedly sexually assault a young boy in a shower in the Penn State locker room, according to grand jury testimony. Spanier did not involve police, according to testimony. Spanier has not been charged, but there have been many calls for his resignation.

Sandusky has been charged with 40 counts of sexually abusing children.

-- athletic director Tim Curley and Vice President Gary Schultz -- face charges related to a cover-up. Spanier, who was named president in 1995, in recent days has shown his support for the administrators.

Head coach Joe Paterno, the winningest coach in Division I history,

.

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