'sources' are now saying that Natalie Elphicke did not so much experience a political conversion as storm out of the Tory party having twice been refused Ministerial posts.
And, more explicitly Tories seem to be happy to say that it was her conduct in trying to excuse her husband's conviction for sexual assault (for which she has belatedly apologised).
No surprise the Tories want to depict her as tainted... & perhaps no surprise Streeting is defending her!