The lawyer who divulged President Bush’s drunken-driving arrest days before the 2000 election was arrested Tuesday after he was spotted on a South Portland highway overpass wearing an Osama bin Laden Halloween costume and holding a toy gun.

Tom Connolly, 49, was charged with criminal threatening, a misdemeanor, and was released after posting $500 bail. He said he intends to plead not guilty.

Police said the costume included plastic dynamite, grenades, and a replica of an AK-47 assault rifle.

“The whole thing is just incredibly bizarre,” said Police Chief Ed Googins. “It just crossed the line.”

The chief said there was no way to tell from a distance whether the gun was real or fake.