Another lawmaker caught sending pic... this one dressed as a tiger.

This is just bizarre. We need to vote these lunatics out of office. Item.

Grinning broadly in his tiger costume, this was the picture a Senator sent to a female member of his staff at 1am in the morning.

David Wu has admitted he is on medication for mental health problems, but is refusing to resign.

He is receiving counselling after the pressures of his job and looking after his family became too much for him.

The Democrat Senator for Oregon confirmed on ABC's Good Morning America that his staff had tried to stage an ‘intervention’ and force him to have psychiatric treatment when his erratic behaviour caused them deep concerns.

But despite lingering concerns over his mental health, he claimed he can ‘emphatically do the job’.

The admission from Wu begins to explain a catalogue of strange incidents which have sparked a whispering campaign that he is unfit for office.

At least six of his team of 20 have quit - including his chief of staff, communications director and treasurer - meaning he has had to take the unusual step of managing his own campaign finances.

Local newspapers have reported that staff confronted him about his drinking and harassment, but that he was not interested in listening to their advice.

They claimed Wu, whose marriage broke up in 2009, displayed a violent temper -- and became unpredictable.

Wu told ABC: ‘This was a very difficult time in my life. I’ve had a couple of pretty stressful years raising my children basically on my own.

‘Last October was not a good month. I did some things I sincerely regret and as a result I saw fit to get professional help.

‘I’m in a good place now, I’m taking care of my two children, I’m taking care of my 88-year-old mother, I’m taking care of myself and very importantly I’m taking care of the people of Oregon.’

Wu added that he did not seek help in October because he was unable to take the time off, although he later changed his mind.

The picture of him in a Tiger costume was sent to a female member of staff at 1.03am on October 30th from his personal Congressional email account.

He had both hands - paws - held up to either side of his face and was grinning broadly.

In an attempt to make it look like it was from one of his daughters, he wrote: ‘You're the best, but my Dad made me say that, even though you threatened to shut down his campaign.’

An email half an hour later with the subject ‘wasted’, supposedly from his son, read: ‘My Dad said you said he was wasted Wednesday night after just three sips of wine.

‘It's just that he hasn't had a drink since July 1. Cut him some slack, man. What he does when he's wasted is send emails, not harass people he works with.

'He works SO hard for you . . . Cut the dude some slack, man. Just kidding.’

Wu told the ABC show that he deeply regretted sending the emails.

He said: ‘I think a take-home lesson from this is that while they were very unprofessional you shouldn’t ever send photos of yourself in a Halloween costume.

‘It isn’t professional even when you’re joshing around with your kids a couple of nights before Halloween.

‘I did send those photographs, it was unprofessional, it was inappropriate,’ he said.

Wu added that being his own treasurer would be a ‘temporary situation’ - such an arrangement is frowned upon in the interests of financial proprietary.

‘I emphatically can do that job, I am doing that job,’ he said.

'It was a very tough time, I’ve got myself into a good place...and I’m taking care of myself and my constituents.’