Based on what Constitutional Article or Amendment?
Article IV section 4 states that we are guaranteed a republican form of government.
Do you believe that it's the people, whether it be directly or indirectly, who are the ultimate source of our government or do you believe that it's the fraudsters who are?
“Sworn into office” is moot when predicated upon fraud.
Like the rights secured by the Constitution, which rights exist and precede it whether a document inscribes them or not, fraud is a violation of public trust that vitiates the results, which are to be considered null and void.
There was no legitimate presidential election in 2020. There is currently no legitimate President. The Constitution does not anticipate or address fraudulent elections, and that is why we have an unconstitutional crisis, i.e. it goes beyond the bounds of the text itself.
When the facts are against you, argue the law. Clever Yo-Yo.