Why?
He hired an illegal alien housekeeper and paid her under the table to avoid taxes.
And what did he say? He said that as soon as he found out, he paid taxes and fines and helped her apply for legal status. That's unacceptable. Why would he help an invader get legal status? He's a criminal and certainly not on our side if he'd help the invader stay in the US.
CBS source now says he’s likely to withdraw on his own.
https://twitter.com/MajorCBS/status/831938564715732993
Those "top R officials", if they exist, are likely supporting the arguments advanced by the D's.
The principle argument is the assertion the candidate once hired an undocumented alien.
Which is laughable on its face: the D's passionately support the sanctuary cities concept, but will severely punish any American that hires the aliens that live in those cities.