General Discussion

So, it'd make sense that Johnson wouldn't want the provision in the bill.
Stefanik is just grandstanding to her base by accusing the Democrats of being the ones who need to be reigned in, and also making it look like she's for protecting candidates and insuring transparency in any investigations. If the investigations were against Democrats, she'd be just fine with them; no need for including any protective language in the bill, but she has to pretend she's doing this because she believes in honesty and transparency in government.
It must be difficult for a Trump Humper like her to play both sides of this issue, while trying to stay relevant as a New York State candidate for governor.