Rep. Patrick Kennedy pleaded guilty Tuesday to driving under the influence of prescription drugs and was sentenced to undergo court-ordered drug treatment and a year's probation.

Kennedy, D-R.I., also was fined at least $350 in connection with his middle-of-the-night car crash last month near the U.S. Capitol.

In exchange, two other charges against Kennedy were dismissed: Reckless driving and failure to exhibit a driving permit.

Click here to read Kennedy's traffic accident report.

Accompanied by his lawyer, Kennedy entered his plea Tuesday afternoon before Superior Court Magistrate Judge Aida Melendez.

"I am pleading guilty to driving under the influence," Kennedy said.