MILWAUKEE - No one has been kicked out of the Wisconsin State Assembly in nearly 90 years. But Rep. Jeff Wood (I-Chippewa Falls) is facing that possibility after an embarrassing video showed his fifth arrest for driving while under the influence of drugs or alcohol.

The Tomah Police video shows an officer pulling over Wood last week after his Buick Skylark stops in the middle of a road and then slowly swerves across both lanes of traffic.

During a sobriety test in which Wood is asked to walk a straight line, he stumbles backward into the back of his car before falling down into some grass. An officer helps him up, and Wood is put in handcuffs a short time later without incident.

The video also shows police seizing bottles of prescription drugs from Wood during the arrest. He was charged last week with third-offense operating under the influence of an intoxicant and bail jumping, and released from jail on a $1,000 cash bond.

The 12-minute video is the third this year showing Wood getting arrested. Police refused to release the video last week, saying it would undermine Wood's constitutional right to a fair trial. But after media outlets protested, the department followed the example of the Wisconsin State Patrol, which released recordings of Wood's earlier arrests.

Representative Steve Nass of Whitewater has introduced a resolution to kick Wood out of office.

"That fifth one was a wakeup call. One would think the fourth would be enough, but the fifth certainly was a wakeup call," Rep. Nass said.

On Tuesday, a committee was formed to look into removing Wood from office. In an interview with Wisconsin Public Radio, Wood said he is entering a tougher rehab program and won't seek re-election. He also said he will not step down from office.

If two-thirds of the Legislature's 99 members ultimately vote for expulsion, Wood would be the first Wisconsin lawmaker to be kicked out since 1917.

Rep. Ness believes they will overwhelmingly vote to remove Wood from office.

"This is a process that hasn't been used in a long, long, long time," said Rep. Tony Staskunas, D-West Allis, one of three Democrats on the panel. "It needs to proceed in an expeditious fashion, but on the other hand it needs to proceed in a fair and open fashion. We need to take the time to gather the information we need."

The committee's proceedings could be complicated by Wood's ongoing treatment for substance abuse. Wood skipped the Assembly floor session Tuesday and his absence was not excused by colleagues, which typically happens when a lawmaker can't be present.

"The fact is, he should know better. Anyone who works in the public domain should know this is totally and completely unacceptable behavior," said John Vose of Mothers Against Drunk Driving.

Some say Wood is lucky he didn't kill anyone.

"God forbid that at some point in time, he makes this bad decision again, and hurts himself or kill somebody. It's a very real possibility. This has got to stop," said Vose.

(The Associated Press contributed to this report)