His tax plan has been estimated to add $10 trillion to the deficit. Trump will inherit a half-trillion dollar deficit. He will increase spending on infrastructure on the military and infrastructure and will make no changes to Social Security and Medicare. He has proposed no large scale cuts to offset the additional spending much less the current deficit or the loss in tax revenue. Given that then increasing the national debt by 70% is probably a conservative estimate.
By whom and did you mean debt instead of deficit. In addition, the craven Congress of rats and “principled conservatives” is unlikely to treat him with the consideration they treated the Mahdi in budget matters. He is, after all, white and eligible for vituperation.