The president touched down in Georgia for a rally to support Republican nominees shortly after the White House confirmed Katie Zacharia is ‘transitioning out’ of her role as press secretary

• Full story: Katie Zacharia fired after five days as White House press secretary

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In Maine, Troy Jackson, the Democratic nominee for US Senate, and Susan Collins, the five-term Republican incumbent traded barbs on Thursday in their final debate ahead of the November midterms.

This was the fourth showdown between the pair. Collins has tried to cast Jackson as an inexperienced state lawmaker, and attempted to yoke him to the former nominee, Graham Platner, who dropped out of the race earlier this year following allegations of rape and sexual assault (which he still denies). Meanwhile, Jackson accused his opponent of corruption, and castigated her for her “moderate” persona in Congress.