Without making any comment on the actual merits of the claim itself, the legal implications would be ominous.
The Buzzfeed report claims there is documentary evidence and witnesses that corroborate the claim of suborning perjury. Being in itself a felony, it would satisfy the impeachment requirement of treason, bribery or other high crimes and misdemeanours. That very same charge was part of the articles of impeachment in the case of both Richard Nixon and Bill Clinton.
AG nominee Barr has already testified that, in his opinion, a president persuading a witness to commit perjury or change their testimony would constitute obstruction of justice.
Trump has a long history of being careless about leaving evidence trails that come back to haunt him. The Stormy Daniels payment, the Access Hollywood tape, the Trump Foundation payments etc.
Cohen is next scheduled to testify before the House Judiciary Committee on Feb 7. .