Boris Johnson broke promise to appear before Commons liaison committee this week, its chair says - live news

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Sarah Wollaston, the Tory-turned-Lib Dem MP who chairs the Commons liaison committee, has accused Boris Johnson of breaking a promise to appear before her committee this week. In an interview for Newsnight she explained:

I'm appalled. The prime minister is running away from scrutiny. We had a series of reassurances from him over the summer that he would come to the liaison committee - initially before parliament came back, so on the first Monday. He then moved that date to this coming Wednesday and we very specifically queried with him about the position of prorogation and he assured us that he would be coming to liaison.

I'm afraid that is a promise broken because he has prorogued parliament and select committees can't sit. But in fact we decided that we would invite him anyway - that we would come back and sit on an informal basis, and I'm afraid we've heard today that he's not prepared to come.