Could be...but TPP is going to be a tricky issue for HRC since she's been both for it and against it, and with Trump having flatly said he's against it he can claim he's more decisive than she.
HRC would also be wise not to press Trump to release his tax returns, although normally it would be a legit issue...unless HRC releases the transcripts of her GS/Wall Street speeches as she promised in February that she would and making that promise got her through the primary, now there's no need to live up to her promise. So she'd be wise to stay away from pressing Trump to release his tax returns - which he also has no intention of doing.