A Reuters/Ipsos tracking poll finds Mitt Romney has moved into a two point lead over President Obama in a small bounce for him from the Republican National Convention, 44% to 42%.
Romney entered the week with Obama leading by four points, 46% to 42%.
The key questions: Will the bounce get further momentum after the Romney speech? Will it last?
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The bus was heading to Mombasa and the lorry was travelling in the opposite direction when they collided on Tuesday, say Kenyan police.
"Corbyn himself has said he was a 200-1 outsider for the Labour leadership in 2015 and look where that one went," the PM told supporters.
A father filmed himself killing his baby daughter and posted the video clips on Facebook, before committing suicide, Thai police have said.