ummmm… he offered a suggestion to help you stop looking illiterate. But you still insist.
toe the line
phrase of toe
1.
accept the authority, principles, or policies of a particular group, especially under pressure.
synonyms: conform, obey the rules, observe the rules, comply with the rules, abide by the rules, follow the rules; informalplay by the rules
“the choice is yours: toe the line or pack your bags”
If anything, we could say that Trump is “towing” it – as in trying to pull the GOP Establishment’s line to a new place.
The GOP Establishment is fighting that tooth and nail. A few times he has compelled the GOP leadership to change, which means that the GOP Leadership is toeing Trump’s line. But by and large, Trump’s relationship with the GOP Leadership is the opposite of toeing the GOP line.