Swearing in the president?

Mainly to uphold the tenets of the Constitution of the United States.

The Oath of Office which Trump broke the moment he took.

For making the military service in argentina was killed carrasco I do really beliieve I said to the mafia from madres de plaza de mayo I accused Carlos Saul Menem who never thought Fidel Castro was watching him same as anybody else when was killed carrasco and cabezas I do really believe this company has something to do selling fashion disasters in pinamar when there was the kill of cabezas was all that reported by Alfredo Olivieri I woke up that same day at the beach and suddenly there is this querelle against me cause I was not going around with prdinary people when we playied in pinamar that is all about when happened that band with david soul and alfredo the querella is just exactly the same than with Carlos Saul Menrm fake names under the name of Fidel Castro

To preserve, protect and defend the constitution.  

Usually it's high heaven. Although I am still confused what low heaven is.

To protect and defend the Constitution of the United States from all threats foreign and domestic!

Personally I feel he violated it by STONEWALLING the federal investigation in Russia interfering in the 2016 election! Making him a domestic threat by IGNORING a foreign threat!

If Trump tries to postpone the November election he'll be OPENLY violating the constitution!