From The Daily Beast:
The Trump campaign went out of its way to dramatically alter the Republican Party’s official position on Ukraine—against the wishes of GOP hawks and despite senior Trump aide Paul Manafort’s insistence that they weren’t involved.
The move, first reported by The Washington Post, alienated Republicans who have made up the party’s foreign policy base for decades, and indicates that the Trump campaign has a particular interest in Ukraine, where Manafort had previously worked for a pro-Putin leader.
...
Meanwhile, records for the meeting seem to have disappeared. A co-chair for the national security platform subcommittee told The Daily Beast that the minutes for the meeting have been discarded. The Republican National Committee had no comment when asked whether this was standard procedure for all the subcommittees.
(my bold)
Manafort and Trump can scrub the minutes, but they can’t silence the four people quoted on the record in the Daily Beast article who were at the meeting, and were fully aware that the Trump campaign was behind the alterations.
Even with quasi-treason, it appears the cover-up is worse than the crime.